EdkCompatabilityPkg: Fix build issues with X64 clang

Removed passing VA_LIST and some assembly language compatability issues. Did not fix ReportStatusCode passing VA_LIST (non-ANSI C Code), and some of the assembler was not not ported and int 3 was inserted, as it likely is not needed.

signed-off-by: andrewfish
reviewed-by: lgao4


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12006 6f19259b-4bc3-4df7-8a09-765794883524

EdkCompatibilityPkg/Foundation/Library/EfiCommonLib/ReportStatusCode.c

@@ -332,9 +332,10 @@ Returns:
   // The first 12 * UINTN bytes of the string are really an 
   // arguement stack to support varargs on the Format string.
   //
-#ifdef EFIARM
+#if (defined (EFIARM) || defined(__APPLE__))
   // It is not legal C code to case VA_LIST to a pointer. VA_LIST can 
   // be a structure. 
+  return FALSE;
 #else
   *Marker = (VA_LIST) (DebugInfo + 1);
   *Format = (CHAR8 *)(((UINT64 *)*Marker) + 12);