[csmith-project/csmith] 4aa53d: Use a better way to insert NOP breakpoint

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Branch: refs/heads/master
Home:   https://github.com/csmith-project/csmith

Commit: 4aa53d2cc3cc23fca6b88742e1c6e15cf9c02e4d
    https://github.com/csmith-project/csmith/commit/4aa53d2cc3cc23fca6b88742e1c6e15cf9c02e4d
Author: Xuejun Yang <jxyang@cs.utah.edu>
Date:   2011-05-04 (Wed, 04 May 2011)

Changed paths:
  M src/Common.h
  M src/StatementAssign.cpp
  M src/StatementGoto.cpp

Log Message:
-----------
Use a better way to insert NOP breakpoint

previously statements serving as NOP breakpoint triggers compiler warnings. Now change it to a more informative macro that doesn't triggers warnings according to John's suggestion.