0.pre7.29:

0.pre7.29:
	merged MNA EVAL-WHEN patch from sbcl-devel 2001-08-31 (doing
		nothing at toplevel unless :EXECUTE)
	rewrote the logic in the rest of the same EVAL-WHEN clause (not
		trying to change its behavior, just to express it more
		nicely)
	The implementation of EVAL doesn't actually belong IN-PACKAGE
		SB!BYTECODE. Put it in SB!IMPL instead.
	deleted duplicate definition of SB-KERNEL:*EVAL-STACK-TOP*
	moved definition of IGNORE-ERRORS src/code/macros (as
		DEFMACRO-MUNDANELY at build-the-cross-compiler time) so
		it can be used in target code in src/code/extensions
		(although that turns out not to help, since it expands
		into HANDLER-CASE, which wants to be defined later..)
	added src/code/late-extensions.lisp to hold things like
		LIST-WITH-LENGTH-P which want to have some of the
		Lisp system set up before they're defined
	renamed src/code/extensions.lisp to
		src/code/early-extensions.lisp (since now there's
		a corresponding late-extensions.lisp again)
	moved POSITIVE-PRIMEP to src/code/late-extensions.lisp,
		deleted src/code/numbers.lisp
	limited POSITIVE-PRIMEP to FIXNUM and moved it to SB!INT
	merged MNA "eval-when problems -- fix" patch from sbcl-devel
		2001-09-01 (IR1-converting EVAL-WHEN (with no forms)
		even in "the forms in the body are ignored" case,
		instead of just skipping IR1 conversion completely
		and leaving START and CONT dangling in the wind)
	since I'm doing related filename and stems-and-flags cleanup
		 anyway..
	..renamed src/code/early-target-error.lisp to
		src/code/target-error.lisp
	..renamed src/code/late-target-error.lisp to
		src/code/condition.lisp