[PATCH] Expr::IgnoreImpCasts should also ignore CXXConstructorCalls for implicit copy constructor calls

[Jochen Eisinger]

  Here's the result of clang-test:
  [489/489] Running the Clang regression tests
  -- Testing: 6207 tests, 32 threads --
  Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
  Testing Time: 24.76s
    Expected Passes    : 6182
    Expected Failures  : 22
    Unsupported Tests  : 3

http://llvm-reviews.chandlerc.com/D720