Ted Kremenek a5958869f6 TrackConstraintBRVisitor and ConditionBRVisitor can emit similar ...

path notes for cases where a value may be assumed to be null, etc.
Instead of having redundant diagnostics, do a pass over the generated
PathDiagnostic pieces and remove notes from TrackConstraintBRVisitor
that are already covered by ConditionBRVisitor, whose notes tend
to be better.

Fixes <rdar://problem/12252783>

llvm-svn: 166728

2012-10-25 22:07:10 +00:00

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