[clang] [Sema] gh56556 (PR #83997)

[Younan Zhang via cfe-commits]

https://github.com/zyn0217 created https://github.com/llvm/llvm-project/pull/83997

CI

>From 69414d7352b170f6fcff22c6f5dfa91cc76b0b58 Mon Sep 17 00:00:00 2001
From: Younan Zhang <zyn7109 at gmail.com>
Date: Tue, 5 Mar 2024 19:56:59 +0800
Subject: [PATCH] gh56556

---
 clang/lib/Sema/TreeTransform.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/clang/lib/Sema/TreeTransform.h b/clang/lib/Sema/TreeTransform.h
index 7389a48fe56fcc..c96ffcb97a7591 100644
--- a/clang/lib/Sema/TreeTransform.h
+++ b/clang/lib/Sema/TreeTransform.h
@@ -13649,10 +13649,12 @@ TreeTransform<Derived>::TransformLambdaExpr(LambdaExpr *E) {
   // use evaluation contexts to distinguish the function parameter case.
   CXXRecordDecl::LambdaDependencyKind DependencyKind =
       CXXRecordDecl::LDK_Unknown;
+  DeclContext *DC = getSema().CurContext;
+  if (DC->getDeclKind() == Decl::Kind::RequiresExprBody)
+    DC = DC->getParent();
   if ((getSema().isUnevaluatedContext() ||
        getSema().isConstantEvaluatedContext()) &&
-      (getSema().CurContext->isFileContext() ||
-       !getSema().CurContext->getParent()->isDependentContext()))
+      (DC->isFileContext() || !DC->getParent()->isDependentContext()))
     DependencyKind = CXXRecordDecl::LDK_NeverDependent;
 
   CXXRecordDecl *OldClass = E->getLambdaClass();