Tie the macOS tests in test/Integration to the latest macOS SDK

This change will ensure that these tests won't fail when a new SDK that
utilizes new compiler features is used.
See https://reviews.llvm.org/D32178 for more context.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@304542 91177308-0d34-0410-b5e6-96231b3b80d8

test/Integration/carbon.c

@@ -1,4 +1,5 @@
 // RUN: %clang -fsyntax-only %s
+// REQUIRES: macos-sdk-10.12
 #ifdef __APPLE__
 #include <Carbon/Carbon.h>
 #endif

test/Integration/cocoa-pch.m

@@ -1,6 +1,7 @@
 // RUN: %clang -arch x86_64 -x objective-c-header %s -o %t.h.pch
 // RUN: touch %t.empty.m
 // RUN: %clang -arch x86_64 -fsyntax-only %t.empty.m -include %t.h -Xclang -ast-dump 2>&1 > /dev/null
+// REQUIRES: macos-sdk-10.12
 #ifdef __APPLE__
 #include <Cocoa/Cocoa.h>
 #endif

test/Integration/cocoa.m

@@ -1,4 +1,5 @@
 // RUN: %clang -arch x86_64 %s -fsyntax-only -Xclang -print-stats
+// REQUIRES: macos-sdk-10.12
 #ifdef __APPLE__
 #include <Cocoa/Cocoa.h>
 #endif

test/lit.cfg

@@ -529,3 +529,6 @@ if run_console_tests != 0:
   config.available_features.add('console')
 
 lit.util.usePlatformSdkOnDarwin(config, lit_config)
+macOSSDKVersion = lit.util.findPlatformSdkVersionOnMacOS(config, lit_config)
+if macOSSDKVersion is not None:
+    config.available_features.add('macos-sdk-' + macOSSDKVersion)