Jordan Rose d1c7cf26ae [analyzer] Tighten up safety in the use of lazy bindings. ...

- When deciding if we can reuse a lazy binding, make sure to check if there
  are additional bindings in the sub-region.
- When reading from a lazy binding, don't accidentally strip off casts or
  base object regions. This slows down lazy binding reading a bit but is
  necessary for type sanity when treating one class as another.

A bit of minor refactoring allowed these two checks to be unified in a nice
early-return-using helper function.

<rdar://problem/13239840>

llvm-svn: 175703

2013-02-21 01:34:51 +00:00

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