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Author SHA1 Message Date
Richard Smith 089ee1554c PR16339: Don't produce a diagnostic pointing at the whitespace between a '#if' 
and a '!defined(X)' if we find a broken header guard. This is suboptimal; we
should point the diagnostic at the 'X' token not the 'if' token, but it fixes
the crash.

llvm-svn: 184054
 2013-06-16 05:05:39 +00:00
Richard Trieu 33a4b3db0d Introducing -Wheader-guard, a warning that checks header guards actually work 
properly.  This warning checks that the #ifndef and #define directives at
the beginning of a header refer to the same macro name.  Includes a fix-it
hint to correct the header guard.

llvm-svn: 183867
 2013-06-12 21:20:57 +00:00