llvm-svn: 129614

Teach TextDiagnosticPrinter to print out '-Werror' in addition to the warning flag for a warning mapped to an error.

For example:

t.c:7:9: error: using the result of an assignment as a condition without parentheses [-Werror,-Wparentheses]

llvm-svn: 126466

or source locations that refer into a macro instantiation, delete all
of the Fix-Its on that diagnostic.

llvm-svn: 124833

llvm-svn: 124441

Addresses rdar://8435969&8852495

llvm-svn: 123462

Fix an unexpected hickup caused by exceeding size of
generated table (and a misleading comment). Improve
on help message for -fapple-kext.

llvm-svn: 123003

Diagnostic pragmas are broken because we don't keep track of the diagnostic state changes and we only check the current/latest state.
Problems manifest if a diagnostic is emitted for a source line that has different diagnostic state than the current state; this can affect
a lot of places, like C++ inline methods, template instantiations, the lexer, etc.

Fix the issue by having the Diagnostic object keep track of the source location of the pragmas so that it is able to know what is the diagnostic state at any given source location.

Fixes rdar://8365684.

llvm-svn: 121873

-Move the stuff of Diagnostic related to creating/querying diagnostic IDs into a new DiagnosticIDs class.
-DiagnosticIDs can be shared among multiple Diagnostics for multiple translation units.
-The rest of the state in Diagnostic object is considered related and tied to one translation unit.
-Have Diagnostic point to the SourceManager that is related with. Diagnostic can now accept just a
   SourceLocation instead of a FullSourceLoc.
-Reflect the changes to various interfaces.

llvm-svn: 119730