[PATCH] An analysis to find external function pointers and trace their data flow

[Tom Roeder]

  This patch removes several asserts and fixes string handling, as suggested. It also removes some extra unnecessary/unused code from the tests.

http://llvm-reviews.chandlerc.com/D2873

CHANGE SINCE LAST DIFF
  http://llvm-reviews.chandlerc.com/D2873?vs=7781&id=7811#toc

Files:
  include/llvm/Analysis/ExternalFunctionAnalysis.h
  include/llvm/InitializePasses.h
  lib/Analysis/Analysis.cpp
  lib/Analysis/CMakeLists.txt
  lib/Analysis/ExternalFunctionAnalysis.cpp
  test/Analysis/ExternalFunctionAnalysis/external_function_analysis.ll
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