[PATCH] Don't constant fold through zero-length fields

[Thomas Jablin]

I've updated the patch by replacing the CHECK-NOT test cases with CHECK test cases and included a new test demonstrating that indexing past the end of an array that is not the last field in a structure is already handled correctly.

http://reviews.llvm.org/D5032

Files:
  lib/Analysis/ConstantFolding.cpp
  test/Transforms/GlobalOpt/empty-type-field.ll
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