Fix rdar://6251437, references to enum constant decls in a block
don't need a BlockDeclRefExpr.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56766 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/block-misc.c b/test/Sema/block-misc.c
index 92632f3..77de4a6 100644
--- a/test/Sema/block-misc.c
+++ b/test/Sema/block-misc.c
@@ -48,3 +48,17 @@
 	char *^ y; // expected-error {{block pointer to non-function type is invalid}}
 }
 
+
+
+enum {NSBIRLazilyAllocated = 0};
+
+int test4(int argc) {  // rdar://6251437
+  ^{
+    switch (argc) {
+      case NSBIRLazilyAllocated:  // is an integer constant expression.
+      default:
+        break;
+    }
+  }();
+  return 0;
+}