[PATCH] D17149: Consolidate and improve the handling of built-in feature-like macros

[Andy Gibbs via cfe-commits]

AndyG updated this revision to Diff 52513.
AndyG added a comment.

Ok, I've removed support for nested parentheses.  Can this go through now?

Thanks.


http://reviews.llvm.org/D17149

Files:
  include/clang/Basic/DiagnosticLexKinds.td
  lib/Lex/PPMacroExpansion.cpp
  test/Preprocessor/feature_tests.c
  test/Preprocessor/invalid-__has_warning1.c
  test/Preprocessor/invalid-__has_warning2.c
  test/Preprocessor/warning_tests.c

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