Function declarations are, in fact, permitted in the init-statement of a for

loop. Don't confuse Sema by saying they're not.

llvm-svn: 274080

clang/include/clang/Sema/DeclSpec.h

@@ -2119,9 +2119,9 @@ public:
     case FileContext:
     case MemberContext:
     case BlockContext:
+    case ForContext:
       return true;
 
-    case ForContext:
     case ConditionContext:
     case KNRTypeListContext:
     case TypeNameContext:

clang/test/SemaCXX/cxx1y-deduced-return-type.cpp

@@ -502,3 +502,7 @@ namespace PR24989 {
   using T = decltype(x);
   void (T::*p)(int) const = &T::operator();
 }
+
+void forinit_decltypeauto() {
+  for (decltype(auto) forinit_decltypeauto_inner();;) {} // expected-warning {{interpreted as a function}} expected-note {{replace}}
+}