fix one more this-is-not-a-constant error. test included

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55609 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Sema/SemaDecl.cpp

@@ -1269,6 +1269,9 @@ bool Sema::CheckForConstantInitializer(Expr *Init, QualType DclT) {
   if (Init->getType()->isArrayType())
     return false;
 
+  if (Init->getType()->isFunctionType())
+    return false;
+
   Diag(Init->getExprLoc(), diag::err_init_element_not_constant,
        Init->getSourceRange());
   return true;

test/Sema/array-init.c

@@ -235,3 +235,6 @@ struct soft_segment_descriptor gdt_segs[] = {
 	{(int) &dblfault_tss},
 	{ (int)xpto},
 };
+
+static void sppp_ipv6cp_up();
+const struct {} ipcp = { sppp_ipv6cp_up }; //expected-warning{{empty struct extension}} expected-warning{{excess elements in array initializer}}