[PATCH] Added comprehensive macro arg usage logic to Use-Nullptr Transform

[Edwin Vane]

    - Removing bad assert. Turns out the invariant this assertion was testing was invalid.

Hi klimek, gribozavr, doug.gregor,

http://llvm-reviews.chandlerc.com/D732

CHANGE SINCE LAST DIFF
  http://llvm-reviews.chandlerc.com/D732?vs=1794&id=1799#toc

Files:
  cpp11-migrate/UseNullptr/NullptrActions.cpp
  test/cpp11-migrate/UseNullptr/macros.cpp
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