Do not define __STRICT_ANSI__ in clang-cl

[• ehsan]

Summary

This breaks building the cairo library with MSVC on Windows, because it uses STRICT_ANSI to detect whether the inline keyword is available.

[• ehsan]

Moved the test.

[• ehsan]

Landed in r212066.

lib/Frontend/InitPreprocessor.cpp

#undef TOSTR2
   // checks that it is necessary to report 4.2.1 (the base GCC version we claim
   // compatibility with) first.
   Builder.defineMacro("__VERSION__", "\"4.2.1 Compatible " + 
                       Twine(getClangFullCPPVersion()) + "\"");
 
   // Initialize language-specific preprocessor defines.
 
   // Standard conforming mode?
-  if (!LangOpts.GNUMode)
+  if (!LangOpts.GNUMode && !LangOpts.MSVCCompat)
     Builder.defineMacro("__STRICT_ANSI__");
 
   if (LangOpts.CPlusPlus11)
     Builder.defineMacro("__GXX_EXPERIMENTAL_CXX0X__");
 
   if (LangOpts.ObjC1) {
     if (LangOpts.ObjCRuntime.isNonFragile()) {
       Builder.defineMacro("__OBJC2__");

test/Preprocessor/predefined-macros.c

 // This test verifies that the correct macros are predefined.
 //
 // RUN: %clang_cc1 %s -E -dM -triple i686-pc-win32 -fms-extensions -fms-compatibility \
 // RUN:     -fmsc-version=1300 -o - | FileCheck %s --check-prefix=CHECK-MS
 // CHECK-MS: #define _INTEGRAL_MAX_BITS 64
 // CHECK-MS: #define _MSC_EXTENSIONS 1
 // CHECK-MS: #define _MSC_VER 1300
 // CHECK-MS: #define _M_IX86 600
 // CHECK-MS: #define _M_IX86_FP
 // CHECK-MS: #define _WIN32 1
 // CHECK-MS-NOT: #define __GNUC__
+// CHECK-MS-NOT: #define __STRICT_ANSI__
 //
 // RUN: %clang_cc1 %s -E -dM -ffast-math -o - \
 // RUN:   | FileCheck %s --check-prefix=CHECK-FAST-MATH
 // CHECK-FAST-MATH: #define __FAST_MATH__
 // CHECK-FAST-MATH: #define __FINITE_MATH_ONLY__ 1
 //
 // RUN: %clang_cc1 %s -E -dM -ffinite-math-only -o - \
 // RUN:   | FileCheck %s --check-prefix=CHECK-FINITE-MATH-ONLY