chore: fix stage2 issue

chore: fix stage2 issues

src/Init/Data/Array/Basic.lean

@@ -786,7 +786,7 @@ decreasing_by simp_wf; exact Nat.sub_succ_lt_self _ _ i.isLt
   induction a, i using Array.feraseIdx.induct with
   | @case1 a i h a' _ ih =>
     unfold feraseIdx
-    simp [h, a', ih]
+    simp +zetaDelta [h, a', ih]
   | case2 a i h =>
     unfold feraseIdx
     simp [h]

src/Init/Data/List/Impl.lean

@@ -332,7 +332,7 @@ def enumFromTR (n : Nat) (l : List α) : List (Nat × α) :=
       rw [← show _ + as.length = n + (a::as).length from Nat.succ_add .., foldr, go as]
       simp [enumFrom, f]
   rw [← Array.foldr_toList]
-  simp [go]
+  simp +zetaDelta [go]
 
 /-! ## Other list operations -/
 

src/Lean/Data/RArray.lean

@@ -55,7 +55,7 @@ where
   go lb ub h1 h2 : (ofFn.go f lb ub h1 h2).size = ub - lb := by
     induction lb, ub, h1, h2 using RArray.ofFn.go.induct (f := f) (n := n)
     case case1 => simp [ofFn.go, size]; omega
-    case case2 ih1 ih2 hiu => rw [ofFn.go]; simp [size, *]; omega
+    case case2 ih1 ih2 hiu => rw [ofFn.go]; simp +zetaDelta [size, *]; omega
 
 section Meta
 open Lean

src/Lean/Elab/PatternVar.lean

@@ -159,7 +159,7 @@ private def processVar (idStx : Syntax) : M Syntax := do
 private def samePatternsVariables (startingAt : Nat) (s₁ s₂ : State) : Bool := Id.run do
   if h₁ : s₁.vars.size = s₂.vars.size then
     for h₂ : i in [startingAt:s₁.vars.size] do
-      if s₁.vars[i] != s₂.vars[i]'(by obtain ⟨_, y⟩ := h₂; simp_all) then return false
+      if s₁.vars[i] != s₂.vars[i]'(by obtain ⟨_, y⟩ := h₂; simp_all +zetaDelta) then return false
     true
   else
     false

src/Std/Sat/AIG/Basic.lean

@@ -471,7 +471,7 @@ def mkGate (aig : AIG α) (input : GateInput aig) : Entrypoint α :=
       have := input.lhs.ref.hgate
       have := input.rhs.ref.hgate
       omega
-  ⟨{ aig with decls, invariant, cache }, ⟨g, by simp [decls]⟩⟩
+  ⟨{ aig with decls, invariant, cache }, ⟨g, by simp [g, decls]⟩⟩
 
 /--
 Add a new input node to the AIG in `aig`. Note that this version is only meant for proving,
@@ -487,7 +487,7 @@ def mkAtom (aig : AIG α) (n : α) : Entrypoint α :=
     split at h2
     · apply aig.invariant <;> assumption
     · contradiction
-  ⟨{ decls, invariant, cache }, ⟨g, by simp [decls]⟩⟩
+  ⟨{ decls, invariant, cache }, ⟨g, by simp [g, decls]⟩⟩
 
 /--
 Add a new constant node to `aig`. Note that this version is only meant for proving,
@@ -503,7 +503,7 @@ def mkConst (aig : AIG α) (val : Bool) : Entrypoint α :=
     split at h2
     · apply aig.invariant <;> assumption
     · contradiction
-  ⟨{ decls, invariant, cache }, ⟨g, by simp [decls]⟩⟩
+  ⟨{ decls, invariant, cache }, ⟨g, by simp [g, decls]⟩⟩
 
 end AIG
 

src/Std/Sat/AIG/CNF.lean

@@ -505,7 +505,7 @@ def State.addConst (state : State aig) (idx : Nat) (h : idx < aig.decls.size)
   let newCnf := Decl.constToCNF (.inr ⟨idx, h⟩) b
   have hinv := toCNF.State.Inv_constToCNF htip
   let ⟨cache, hcache⟩ := cache.addConst idx h htip
-  ⟨⟨newCnf ++ cnf, cache, State.Inv_append hinv inv⟩, by simp [hcache]⟩
+  ⟨⟨newCnf ++ cnf, cache, State.Inv_append hinv inv⟩, by simp [newCnf, hcache]⟩
 
 /--
 Add the CNF for a `Decl.atom` to the state.
@@ -517,7 +517,7 @@ def State.addAtom (state : State aig) (idx : Nat) (h : idx < aig.decls.size)
   let newCnf := Decl.atomToCNF (.inr ⟨idx, h⟩) (.inl a)
   have hinv := toCNF.State.Inv_atomToCNF htip
   let ⟨cache, hcache⟩ := cache.addAtom idx h htip
-  ⟨⟨newCnf ++ cnf, cache, State.Inv_append hinv inv⟩, by simp [hcache]⟩
+  ⟨⟨newCnf ++ cnf, cache, State.Inv_append hinv inv⟩, by simp [newCnf, hcache]⟩
 
 /--
 Add the CNF for a `Decl.gate` to the state.
@@ -537,7 +537,7 @@ def State.addGate (state : State aig) {hlb} {hrb} (idx : Nat) (h : idx < aig.dec
       rinv
   have hinv := toCNF.State.Inv_gateToCNF htip
   let ⟨cache, hcache⟩ := cache.addGate idx h htip hl hr
-  ⟨⟨newCnf ++ cnf, cache, State.Inv_append hinv inv⟩, by simp [hcache]⟩
+  ⟨⟨newCnf ++ cnf, cache, State.Inv_append hinv inv⟩, by simp [newCnf, hcache]⟩
 
 /--
 Evaluate the CNF contained within the state.

src/Std/Sat/AIG/Relabel.lean

@@ -65,7 +65,7 @@ def relabel (r : α → β) (aig : AIG α) : AIG β :=
     cache,
     invariant := by
       intro idx lhs rhs linv rinv hbound hgate
-      simp [decls] at hgate
+      simp +zetaDelta [decls] at hgate
       have := Decl.relabel_gate hgate
       apply aig.invariant
       assumption

src/Std/Tactic/BVDecide/LRAT/Internal/Formula/RatAddResult.lean

@@ -224,7 +224,7 @@ theorem ratAdd_result {n : Nat} (f : DefaultFormula n) (c : DefaultClause n) (p
             have insertRupUnits_rw : (insertRupUnits f (negate c)).1 =
               ⟨(insertRupUnits f (negate c)).1.clauses, (insertRupUnits f (negate c)).1.rupUnits,
                (insertRupUnits f (negate c)).1.ratUnits, (insertRupUnits f (negate c)).1.assignments⟩ := rfl
-            simp only [performRatCheck_fold_formula_eq performRupCheck_res h_performRupCheck_res (Literal.negate p) ratHints,
+            simp +zetaDelta only [performRatCheck_fold_formula_eq performRupCheck_res h_performRupCheck_res (Literal.negate p) ratHints,
               clauses_performRupCheck, rupUnits_performRupCheck, ratUnits_performRupCheck,
               restoreAssignments_performRupCheck fc fc_assignments_size, ← insertRupUnits_rw,
               clear_insertRup f f_readyForRatAdd.2 (negate c), fc, performRupCheck_res]

src/Std/Tactic/BVDecide/LRAT/Internal/Formula/RupAddResult.lean

@@ -111,7 +111,7 @@ theorem insertUnitInvariant_insertUnit {n : Nat} (assignments0 : Array Assignmen
           ⟨units.size, units_size_lt_updatedUnits_size⟩
         have i_gt_zero : i.1 > 0 := by rw [i_eq_l]; exact l.1.2.1
         refine ⟨mostRecentUnitIdx, l.2, i_gt_zero, ?_⟩
-        simp only [insertUnit, h3, ite_false, Array.getElem_push_eq, i_eq_l, reduceCtorEq]
+        simp +zetaDelta only [insertUnit, h3, ite_false, Array.getElem_push_eq, i_eq_l, reduceCtorEq]
         constructor
         · rfl
         · constructor
@@ -131,7 +131,6 @@ theorem insertUnitInvariant_insertUnit {n : Nat} (assignments0 : Array Assignmen
                   exact k_property
                 · intro h
                   simp only [← h, not_true, mostRecentUnitIdx] at hk
-                  exact hk rfl
               rw [Array.getElem_push_lt _ _ _ k_in_bounds]
               rw [i_eq_l] at h2
               exact h2 ⟨k.1, k_in_bounds⟩
@@ -193,7 +192,7 @@ theorem insertUnitInvariant_insertUnit {n : Nat} (assignments0 : Array Assignmen
           constructor
           · rw [Array.getElem_push_lt units l j.1 j.2, h1]
           · constructor
-            · simp [i_eq_l, ← hl]
+            · simp +zetaDelta [i_eq_l, ← hl]
               rfl
             · constructor
               · simp only [i_eq_l]
@@ -228,7 +227,7 @@ theorem insertUnitInvariant_insertUnit {n : Nat} (assignments0 : Array Assignmen
           refine ⟨mostRecentUnitIdx, ⟨j.1, j_lt_updatedUnits_size⟩, i_gt_zero, ?_⟩
           simp [insertUnit, h5, ite_false, Array.getElem_push_eq, ne_eq]
           constructor
-          · simp [i_eq_l, ← hl]
+          · simp +zetaDelta [i_eq_l, ← hl]
             rfl
           · constructor
             · rw [Array.getElem_push_lt units l j.1 j.2, h1]
@@ -1330,7 +1329,7 @@ theorem rupAdd_result {n : Nat} (f : DefaultFormula n) (c : DefaultClause n) (ru
         have fc_assignments_size : (insertRupUnits f (negate c)).1.assignments.size = n := by
           rw [size_assignments_insertRupUnits f (negate c)]
           exact f_readyForRupAdd.2.1
-        simp only [clauses_performRupCheck, rupUnits_performRupCheck, ratUnits_performRupCheck,
+        simp +zetaDelta only [clauses_performRupCheck, rupUnits_performRupCheck, ratUnits_performRupCheck,
           restoreAssignments_performRupCheck fc fc_assignments_size, Prod.mk.injEq, and_true] at rupAddSuccess
         have rupAddSuccess : DefaultFormula.insert (clearRupUnits (insertRupUnits f (negate c)).fst) c = f' := by
           rw [rupAddSuccess]

src/Std/Time/Date/ValidDate.lean

@@ -48,7 +48,7 @@ def ofOrdinal (ordinal : Day.Ordinal.OfYear leap) : ValidDate leap :=
         let bounded := Bounded.LE.mk ordinal.val (And.intro h h₁) |>.sub acc
         let bounded : Bounded.LE 1 monthDays.val := bounded.cast (by omega) (by omega)
         let days₁ : Day.Ordinal := ⟨bounded.val, And.intro bounded.property.left (Int.le_trans bounded.property.right monthDays.property.right)⟩
-        ⟨⟨idx, days₁⟩, Int.le_trans bounded.property.right (by simp)⟩
+        ⟨⟨idx, days₁⟩, Int.le_trans bounded.property.right (by simp +zetaDelta)⟩
       else by
         let h₂ := Int.not_le.mp h₁