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Author SHA1 Message Date
Ben Langmuir c28ce3aba6 Avoid a crash after loading an #undef'd macro in code completion 
In code-completion, don't assume there is a MacroInfo for everything,
since we aren't serializing the def corresponding to a later #undef in
the same module.  Also setup the HadMacro bit correctly for undefs to
avoid an assertion failure.

rdar://18416901

llvm-svn: 218694
 2014-09-30 20:00:18 +00:00
Ben Langmuir 8832c066a2 Honour -ivfsoverlay in ASTUnit to match clang 
This allows code indexing, etc. to use the VFS in the same way as the
compiler.

llvm-svn: 206309
 2014-04-15 18:16:25 +00:00