[Bug 1] asm enter and leave bug

[Brad Roberts]

Primarily because it was mostly a testing of bugzilla (though indeed a 
real bug in gdc) and because the batch was something that dvdf and I had 
aleady discussed and was already checked in to both his and my source 
trees.  The bug came from one of the dstress test, which is probably named 
asm enter or asm leave.  I can try to find it, but doesn't seem super 
relevant given the fix is obvious, correct, and already available.