Fix various warnings with the Intel C compiler.

EfiBind.h:
* Adding ignores for certain warnings with the Intel C compiler.
  (Partially merged from MdePkg.)

EfiPxe.h:
* Make sure PXE_NO_UINT64_SUPPORT is defined

Decompress.c:
* Removed 'unreachable' return statement.

EdkCompatibilityPkg/**: (all other files)
* Remove trailing comma from last value in enum.
* Include <EfiBind.h> instead of "EfiBind.h", or
  for some reason __STDC_VERSION__ is not defined.
* Introduce more explicit function call ordering by
  storing results in local variables before using
  in a calculation.
* Add some additional casting for BOOLEAN & UINT8
  following calculations which change the type to 'int'.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5123 6f19259b-4bc3-4df7-8a09-765794883524

EdkCompatibilityPkg/Foundation/Include/X64/EfiBind.h

@@ -37,6 +37,38 @@ Abstract:
 //
 #pragma pack()
 
+#if __INTEL_COMPILER
+//
+// Disable ICC's warning: trailing comma is nonstandard
+//
+//#pragma warning ( disable : 271 )
+
+//
+// Disable ICC's warning: extra ";" ignored
+//
+#pragma warning ( disable : 424 )
+
+//
+// Disable ICC's warning: : variable "foo" was set but never used
+//
+#pragma warning ( disable : 593 )
+
+//
+// Disable ICC's remark #1418: external function definition with no prior declaration.
+// This is legal ANSI C code so we disable the remark that is turned on with /W4
+//
+#pragma warning ( disable : 1418 )
+
+
+//
+// Disable ICC's remark #1419: external declaration in primary source file
+// This is legal ANSI C code so we disable the remark that is turned on with /W4
+//
+#pragma warning ( disable : 1419 )
+
+#endif
+
+
 #if _MSC_EXTENSIONS
 
 //
@@ -89,7 +121,7 @@ Abstract:
 #endif
 
 
-#if (__STDC_VERSION__ < 199901L)
+#if !defined(__GNUC__) && (__STDC_VERSION__ < 199901L)
   //
   // No ANSI C 2000 stdint.h integer width declarations, so define equivalents
   //