[PATCH] D15866: Warn when using `defined` in a macro definition.

[Nico Weber via cfe-commits]

thakis updated this revision to Diff 44958.
thakis added a comment.

For function-type macros, make the warning only show up with -pedantic


http://reviews.llvm.org/D15866

Files:
  include/clang/Basic/DiagnosticGroups.td
  include/clang/Basic/DiagnosticLexKinds.td
  lib/Lex/PPExpressions.cpp
  test/Lexer/cxx-features.cpp
  test/Preprocessor/expr_define_expansion.c

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