This makes the parser much easier to understand, eliminates a ton of global variables,
and gives tblgen nice caret diagnostics.  It is also faster, but tblgen probably doesn't
care about performance.

There are a couple of FIXMEs which I will take care of next.

llvm-svn: 44274

one dependency on flex and gets rid of two ".cvs" files.

llvm-svn: 44210

llvm-svn: 43126

llvm-svn: 33967

llvm-svn: 29034

llvm-svn: 28638

llvm-svn: 27650

These changes modify the makefiles so that the output of flex and bison are
placed in the SRC directory, not the OBJ directory. It is intended that they
be checked in as any other LLVM source so that platforms without convenient
access to flex/bison can be compiled. From now on, if you change a .y or
.l file you *must* also commit the generated .cpp and .h files.

llvm-svn: 23115

llvm-svn: 17359

llvm-svn: 17286

by default, like every other "clean" target in LLVM.

llvm-svn: 16161

llvm-svn: 16094

llvm-svn: 14198

llvm-svn: 9314

They are already marked precious in llvm/Makefile.rules, and removing
this line seems to fix the Makefile so that the Yacc output is placed
into the object tree and not the source tree.

llvm-svn: 9179

llvm-svn: 8875

llvm-svn: 8731

llvm-svn: 7971

system.

llvm-svn: 7014

llvm-svn: 4878

llvm-svn: 4847

llvm-svn: 4846

llvm-svn: 4843