Add '__has_feature' support for weak ObjC classes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102588 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Lex/PPMacroExpansion.cpp b/lib/Lex/PPMacroExpansion.cpp
index c89403cd064843d0fa53945d6695fe52b81c0d79..71bb4fcf684a2e8fab5029dcd93d739f0ae88b8d 100644 (file)
--- a/lib/Lex/PPMacroExpansion.cpp
+++ b/lib/Lex/PPMacroExpansion.cpp
@@ -504,6 +504,7 @@ static bool HasFeature(const Preprocessor &PP, const IdentifierInfo *II) {
            .Case("cxx_rtti", LangOpts.RTTI)
            .Case("cxx_static_assert", LangOpts.CPlusPlus0x)
            .Case("objc_nonfragile_abi", LangOpts.ObjCNonFragileABI)
+           .Case("objc_weak_class", LangOpts.ObjCNonFragileABI)
          //.Case("cxx_concepts", false)
          //.Case("cxx_lambdas", false)
          //.Case("cxx_nullptr", false)