[clang] Fix Mame Mangling Crashes

Author: Mr-Anyone

clang/lib/AST/ItaniumMangle.cpp

@@ -1088,6 +1088,16 @@ void CXXNameMangler::mangleNameWithAbiTags(GlobalDecl GD,
     return;
   }
 
+  const RecordDecl *RD = GetLocalClassDecl(GD.getDecl());
+  if(RD){
+      const DeclContext *DC = Context.getEffectiveDeclContext(RD);
+      const FunctionDecl* FD = dyn_cast<FunctionDecl>(DC);
+      if(FD->getTrailingRequiresClause() && IsLambda){
+          mangleNestedName(GD, DC, AdditionalAbiTags);
+          return;
+      }
+  }
+
   if (isLocalContainerContext(DC)) {
     mangleLocalName(GD, AdditionalAbiTags);
     return;