Make this test not rely on the system <limits.h>. Hopefully fixes the

MSVC build.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95932 91177308-0d34-0410-b5e6-96231b3b80d8

test/Sema/Inputs/conversion.h

@@ -0,0 +1,3 @@
+/* Fake system header for Sema/conversion.c */
+
+#define LONG_MAX __LONG_MAX__

test/Sema/conversion.c

@@ -1,6 +1,6 @@
-// RUN: %clang_cc1 -fsyntax-only -verify -Wconversion -triple x86_64-apple-darwin %s -Wno-unreachable-code
+// RUN: %clang_cc1 -fsyntax-only -verify -Wconversion -nostdinc -isystem %S/Inputs -triple x86_64-apple-darwin %s -Wno-unreachable-code
 
-#include <limits.h>
+#include <conversion.h>
 
 #define BIG 0x7f7f7f7f7f7f7f7fL