* MatchCompiler: Neaten error messages
Especially the added space makes it a little more readable.
* MatchCompiler: Add spaces between operators
* Matchcompiler: Don't bailout if non-const pattern
If matchcompiler found a call to Token::Match() or Token::simpleMatch()
with an unknown string argument, subsequent calls to Token::Match() or
Token::simpleMatch() on the same line would not be processed by
matchcompiler.
To fix this, keep track of the last index we found a match, and update
it accordingly when the line is modified. To avoid having to keep track
of if "Match" or "simpleMatch" is the first match we find, just make a
loop over them.