[rfa] ENUM BITFIELD, here it comes again

[Michael Elizabeth Chastain]

Andrew C asks:

  What effect does it have without -readnow but with say:
	$ gdb gdb
	(gdb) break internal_error
	(gdb) run
	(gdb) maint internal-error
	(gdb) backtrace

gdb gdb_6_0-branch:  space used: 8896512
gdb HEAD 2003-08-19: space used: 8904704
gdb HEAD now:        space used: 8265728

That's with both symtab.h and gdbtypes.h improvements in gdb HEAD.

Michael C