fix "files to analyze" notification hanging on typeshed stubs when they aren't actually being analyzed

[DetachHead]

as far as i can tell this is an upstream bug that was uncovered by #932

fixes #967

[github-actions]

Diff from mypy_primer, showing the effect of this PR on open source code:

sympy (https://github.com/sympy/sympy)
-     Type of "n" is "Unknown | ((n: int = 15, subs: dict[Basic, Basic | float] | None = None, maxn: int = 100, chop: bool = False, strict: bool = False, quad: str | None = None, verbose: bool = False) -> Expr) | Any" (reportUnknownMemberType)
+     Type of "n" is "Unknown | ((n: int = 15, subs: dict[Basic, Basic | float] | None = None, maxn: int = 100, chop: bool = False, strict: bool = False, quad: str | None = None, verbose: bool = False) -> Expr)" (reportUnknownMemberType)
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:479:5 - warning: Type of "sol" is partially unknown
+     Type of "sol" is "dict[Any, ComplexInfinity | Rational | NaN | One | NegativeOne | Zero | Integer | Half | Unknown]" (reportUnknownVariableType)
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:501:5 - warning: Type of "eqs" is partially unknown
+     Type of "eqs" is "list[Unknown]" (reportUnknownVariableType)
-     Argument type is "Unknown | Any | _NotImplementedType" (reportUnknownArgumentType)
+     Argument type is "Unknown | _NotImplementedType" (reportUnknownArgumentType)
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:717:18 - warning: Argument type is unknown
+     Argument corresponds to parameter "f" in function "solve" (reportUnknownArgumentType)
-     Argument type is "Equality | Unknown" (reportUnknownArgumentType)
+     Argument type is "Equality | Unknown | Relational | Unequality" (reportUnknownArgumentType)
-     Type of "eq" is "Equality | Unknown" (reportUnknownVariableType)
+     Type of "eq" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:1385:13 - warning: Argument type is Any
-     Argument corresponds to parameter "lhs" in function "__new__" (reportAny)
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:1563:5 - warning: Type of "answer" is partially unknown
+     Type of "answer" is "list[dict[Any, int] | dict[Any, int | Any | ComplexInfinity | Rational | NaN | One | NegativeOne | Zero | Integer | Half | Unknown]]" (reportUnknownVariableType)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:1737:33 - warning: Argument type is partially unknown
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:1737:33 - warning: Argument type is unknown
-     Argument corresponds to parameter "iterable" in function "__init__"
+     Argument corresponds to parameter "iterable" in function "__init__" (reportUnknownArgumentType)
-     Argument type is "list[Unknown] | list[list[Unknown]] | list[tuple[Unknown, int]]" (reportUnknownArgumentType)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:1768:5 - warning: Type of "eqs" is partially unknown
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:1768:5 - warning: Type of "eqs" is unknown (reportUnknownVariableType)
-     Type of "eqs" is "Unknown | Any" (reportUnknownVariableType)
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:1769:18 - warning: Argument type is unknown
+     Argument corresponds to parameter "f" in function "solve" (reportUnknownArgumentType)
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:1770:18 - warning: Argument type is unknown
+     Argument corresponds to parameter "f" in function "solve" (reportUnknownArgumentType)
-     Type of "det" is "(method: str = "bareiss", iszerofunc: Unknown | None = None) -> (Unknown | tuple[Unknown | Basic | Add | Expr | Mul | Dict, bool] | Basic | Add | Expr | Mul | Dict)" (reportUnknownMemberType)
+     Type of "det" is "(method: str = "bareiss", iszerofunc: Unknown | None = None) -> (Unknown | tuple[Unknown | Basic, bool] | Basic | Expr)" (reportUnknownMemberType)
-     Type of "det" is "(method: str = "bareiss", iszerofunc: Unknown | None = None) -> (Unknown | tuple[Unknown | Basic | Add | Expr | Mul | Dict, bool] | Basic | Add | Expr | Mul | Dict)" (reportUnknownMemberType)
+     Type of "det" is "(method: str = "bareiss", iszerofunc: Unknown | None = None) -> (Unknown | tuple[Unknown | Basic, bool] | Basic | Expr)" (reportUnknownMemberType)
-     Type of "det" is "(method: str = "bareiss", iszerofunc: Unknown | None = None) -> (Unknown | tuple[Unknown | Basic | Add | Expr | Mul | Dict, bool] | Basic | Add | Expr | Mul | Dict)" (reportUnknownMemberType)
+     Type of "det" is "(method: str = "bareiss", iszerofunc: Unknown | None = None) -> (Unknown | tuple[Unknown | Basic, bool] | Basic | Expr)" (reportUnknownMemberType)
-     Type of "det" is "(method: str = "bareiss", iszerofunc: Unknown | None = None) -> (Unknown | tuple[Unknown | Basic | Add | Expr | Mul | Dict, bool] | Basic | Add | Expr | Mul | Dict)" (reportUnknownMemberType)
+     Type of "det" is "(method: str = "bareiss", iszerofunc: Unknown | None = None) -> (Unknown | tuple[Unknown | Basic, bool] | Basic | Expr)" (reportUnknownMemberType)
-     Type of "eq1" is "Equality | Unknown" (reportUnknownVariableType)
+     Type of "eq1" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
-     Type of "eq2" is "Equality | Unknown" (reportUnknownVariableType)
+     Type of "eq2" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
-     Type of "eq3" is "Equality | Unknown" (reportUnknownVariableType)
+     Type of "eq3" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
-     Type of "eq1" is "Equality | Unknown" (reportUnknownVariableType)
+     Type of "eq1" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
-     Type of "eq2" is "Equality | Unknown" (reportUnknownVariableType)
+     Type of "eq2" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:2498:23 - warning: Argument type is Any
-     Argument corresponds to parameter "args" in function "__new__" (reportAny)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:2507:5 - warning: Type of "eq" is Any (reportAny)
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:2507:5 - warning: Type of "eq" is partially unknown
+     Type of "eq" is "Any | Unknown" (reportUnknownVariableType)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:2508:18 - warning: Argument type is Any
-     Argument corresponds to parameter "eq" in function "unrad" (reportAny)
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:2536:5 - warning: Type of "t" is partially unknown
+     Type of "t" is "ComplexInfinity | Rational | NaN | One | NegativeOne | Zero | Integer | Half | Unknown" (reportUnknownVariableType)
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:2551:5 - warning: Type of "a" is partially unknown
+     Type of "a" is "ComplexInfinity | Rational | NaN | One | NegativeOne | Zero | Integer | Half | Unknown" (reportUnknownVariableType)
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solvers.py:2552:5 - warning: Type of "b" is partially unknown
+     Type of "b" is "ComplexInfinity | Rational | NaN | One | NegativeOne | Zero | Integer | Half | Unknown" (reportUnknownVariableType)
-     Type of "e" is "Equality | Unknown" (reportUnknownVariableType)
+     Type of "e" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
-     Type of "n" is "Unknown | ((n: int = 15, subs: dict[Basic, Basic | float] | None = None, maxn: int = 100, chop: bool = False, strict: bool = False, quad: str | None = None, verbose: bool = False) -> Expr) | Any" (reportUnknownMemberType)
+     Type of "n" is "Unknown | ((n: int = 15, subs: dict[Basic, Basic | float] | None = None, maxn: int = 100, chop: bool = False, strict: bool = False, quad: str | None = None, verbose: bool = False) -> Expr)" (reportUnknownMemberType)
+   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solveset.py:506:20 - warning: Argument type is unknown
+     Argument corresponds to parameter "args" in function "__new__" (reportUnknownArgumentType)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solveset.py:706:26 - warning: Argument type is Any
-     Argument corresponds to parameter "f" in function "solveset_real" (reportAny)
-     Type of "expr1" is "Equality | Unknown" (reportUnknownVariableType)
+     Type of "expr1" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
-     Type of "expr2" is "Equality | Unknown" (reportUnknownVariableType)
+     Type of "expr2" is "Equality | Unknown | Relational | Unequality" (reportUnknownVariableType)
-     Type of "eqns2" is "list[Equality | Unknown | Any]" (reportUnknownVariableType)
+     Type of "eqns2" is "list[Equality | Unknown | Relational | Unequality | Any]" (reportUnknownVariableType)
-     Type of "number" is "Unknown | One | NegativeOne | Zero | Integer | Rational | NaN | ComplexInfinity | Half | Infinity | NegativeInfinity | Float | _NotImplementedType | Expr" (reportUnknownVariableType)
+     Type of "number" is "Unknown | One | NegativeOne | Zero | Integer | Rational | NaN | ComplexInfinity | Half | Expr" (reportUnknownVariableType)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solveset.py:2793:21 - warning: Argument type is Any
-     Argument corresponds to parameter "f" in function "solveset" (reportAny)
-   /tmp/mypy_primer/projects/sympy/sympy/solvers/tests/test_solveset.py:3411:13 - warning: Argument type is Any
-     Argument corresponds to parameter "lhs" in function "__new__" (reportAny)
-     Type of "eq1" is "list[Equality | Unknown]" (reportUnknownVariableType)
+     Type of "eq1" is "list[Equality | Unknown | Relational | Unequality]" (reportUnknownVariableType)
-     Type of "eq2" is "list[Equality | Unknown]" (reportUnknownVariableType)

... (truncated 4087 lines) ...

spack (https://github.com/spack/spack)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/duplicates.test/packages/virtual-build/package.py:15:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/duplicates.test/packages/virtual-build/package.py:15:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/edges.test/packages/blas-only-client/package.py:18:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/edges.test/packages/blas-only-client/package.py:18:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/edges.test/packages/conditional-edge/package.py:21:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/edges.test/packages/conditional-edge/package.py:22:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/edges.test/packages/conditional-edge/package.py:23:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/edges.test/packages/conditional-edge/package.py:21:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/edges.test/packages/conditional-edge/package.py:22:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/edges.test/packages/conditional-edge/package.py:23:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/t/package.py:10:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/t/package.py:10:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/t/package.py:11:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/t/package.py:11:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/t/package.py:12:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/t/package.py:12:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/t/package.py:14:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/t/package.py:14:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/u/package.py:10:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/u/package.py:10:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/u/package.py:12:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/u/package.py:12:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/v/package.py:11:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/v/package.py:11:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/v/package.py:13:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/v/package.py:13:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/w/package.py:13:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/w/package.py:13:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/w/package.py:14:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/w/package.py:14:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/w/package.py:15:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/w/package.py:15:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/w/package.py:17:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/w/package.py:17:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/x/package.py:12:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
+   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/x/package.py:12:5 - warning: Result of call expression is of type "(pkg: type[PackageBase]) -> None" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)
-   /tmp/mypy_primer/projects/spack/var/spack/repos/flags.test/packages/x/package.py:13:5 - warning: Result of call expression is of type "((pkg: type[PackageBase]) -> None)" and is not used; assign to variable "_" if this is intentional (reportUnusedCallResult)

... (truncated 63 lines) ...