Argyrios Kyrtzidis 2080d90f37 [objc] Refactor and improve functionality for the -Wunused-property-ivar warning.
- Remove the additions to ObjCMethodDecl & ObjCIVarDecl that were getting de/serialized and consolidate
  all functionality for the checking for this warning in Sema::DiagnoseUnusedBackingIvarInAccessor
- Don't check immediately after the method body is finished, check when the @implementation is finished.
  This is so we can see if the ivar was referenced by any other method, even if the method was defined after the accessor.
- Don't silence the warning if any method is called from the accessor silence it if the accessor delegates to another method via self.

rdar://15727325

llvm-svn: 198432
2014-01-03 18:32:18 +00:00
2014-01-03 03:29:15 +00:00
2013-12-29 20:18:15 +00:00
2014-01-03 00:56:20 +00:00
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