search for: __false_cast_thing

Coverity generates false positives when read_atomic() and write_atomic() are called with pointers to objects smaller than 64 bits (because it can''t see that the 64-bit access in the switych statement is dead code). I don''t want to automatically suppress all ofthose, because read_atomic() and write_atomic() could still be called with mis-cast pointers, but for atomic_t accessors