Suppress the "typedef requires a name" warning in Microsoft-extensions mode

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108526 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Parser/MicrosoftExtensions.c b/test/Parser/MicrosoftExtensions.c
index 0b2733e..4a52e8b 100644
--- a/test/Parser/MicrosoftExtensions.c
+++ b/test/Parser/MicrosoftExtensions.c
@@ -34,3 +34,4 @@
 #define FOO(x) #@x
 char x = FOO(a);
 
+typedef enum E { e1 };