Add tests for --> in the first line

test/annexB/language/comments/single-line-html-close-first-line-1.js

@@ -0,0 +1,34 @@
+--> a comment
+
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-html-like-comments
+description: >
+ A SingleLineHTMLCloseComment is allowed in the first line
+flags: [raw]
+info: |
+ InputElementHashbangOrRegExp ::
+ WhiteSpace
+ LineTerminator
+ Comment
+ CommonToken
+ HashbangComment
+ RegularExpressionLiteral
+ HTMLCloseComment
+
+ HTMLCloseComment ::
+ WhiteSpaceSequence[opt] SingleLineDelimitedCommentSequence[opt] --> SingleLineCommentChars[opt]
+negative:
+ phase: runtime
+ type: Test262Error
+---*/
+
+// Because this test concerns the interpretation of non-executable character
+// sequences within ECMAScript source code, special care must be taken to
+// ensure that executable code is evaluated as expected.
+//
+// Express the intended behavior by intentionally throwing an error; this
+// guarantees that test runners will only consider the test "passing" if
+// executable sequences are correctly interpreted as such.
+throw new Test262Error("This is not in a comment");

test/annexB/language/comments/single-line-html-close-first-line-2.js

@@ -0,0 +1,34 @@
+ --> a comment
+
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-html-like-comments
+description: >
+ A SingleLineHTMLCloseComment is allowed in the first line when preceeded by spaces
+flags: [raw]
+info: |
+ InputElementHashbangOrRegExp ::
+ WhiteSpace
+ LineTerminator
+ Comment
+ CommonToken
+ HashbangComment
+ RegularExpressionLiteral
+ HTMLCloseComment
+
+ HTMLCloseComment ::
+ WhiteSpaceSequence[opt] SingleLineDelimitedCommentSequence[opt] --> SingleLineCommentChars[opt]
+negative:
+ phase: runtime
+ type: Test262Error
+---*/
+
+// Because this test concerns the interpretation of non-executable character
+// sequences within ECMAScript source code, special care must be taken to
+// ensure that executable code is evaluated as expected.
+//
+// Express the intended behavior by intentionally throwing an error; this
+// guarantees that test runners will only consider the test "passing" if
+// executable sequences are correctly interpreted as such.
+throw new Test262Error("This is not in a comment");

test/annexB/language/comments/single-line-html-close-first-line-3.js

@@ -0,0 +1,34 @@
+/* a comment */ /*another comment*/--> a comment
+
+// Copyright (C) 2024 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-html-like-comments
+description: >
+ A SingleLineHTMLCloseComment is allowed in the first line when preceeded by spaces and single-line block comments
+flags: [raw]
+info: |
+ InputElementHashbangOrRegExp ::
+ WhiteSpace
+ LineTerminator
+ Comment
+ CommonToken
+ HashbangComment
+ RegularExpressionLiteral
+ HTMLCloseComment
+
+ HTMLCloseComment ::
+ WhiteSpaceSequence[opt] SingleLineDelimitedCommentSequence[opt] --> SingleLineCommentChars[opt]
+negative:
+ phase: runtime
+ type: Test262Error
+---*/
+
+// Because this test concerns the interpretation of non-executable character
+// sequences within ECMAScript source code, special care must be taken to
+// ensure that executable code is evaluated as expected.
+//
+// Express the intended behavior by intentionally throwing an error; this
+// guarantees that test runners will only consider the test "passing" if
+// executable sequences are correctly interpreted as such.
+throw new Test262Error("This is not in a comment");