[PATCH] Semantic tests for memory invalidation at statepoints

[Philip Reames]

These are simply a collection of tests intended to show that information about the contents of gc references in the heap is lost at a statepoint.  I've tried to write them so that they don't disallow correct transformations, while still being fairly easy to understand.  

I'd appreciate a sanity check to make sure the tests actually agree with the documentation.

http://reviews.llvm.org/D6491

Files:
  test/CodeGen/X86/statepoint-forward.ll
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