Add support for Microsoft __ptr32 keyword. 
Patch by Chris Cudmore!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138533 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Parser/MicrosoftExtensions.c b/test/Parser/MicrosoftExtensions.c
index 2b8451b..d03ada8 100644
--- a/test/Parser/MicrosoftExtensions.c
+++ b/test/Parser/MicrosoftExtensions.c
@@ -8,10 +8,16 @@
 __declspec(deprecated) __declspec(deprecated) char * __cdecl ltoa( long _Val, char * _DstBuf, int _Radix);
 __declspec(noalias) __declspec(restrict) void * __cdecl xxx( void * _Memory );
 typedef __w64 unsigned long ULONG_PTR, *PULONG_PTR;
+
 void * __ptr64 PtrToPtr64(const void *p)
 {
   return((void * __ptr64) (unsigned __int64) (ULONG_PTR)p );
 }
+void * __ptr32 PtrToPtr32(const void *p)
+{
+  return((void * __ptr32) (unsigned __int32) (ULONG_PTR)p );
+}
+
 void __forceinline InterlockedBitTestAndSet (long *Base, long Bit)
 {
   __asm {