0.pre7.19:

0.pre7.19:
	various avante-garde mostly-post-IR1-interpreter-ism
		reinterpretation of debug-int.lisp..
	..grepped down and killed things matching 'interpreted-debug-'
	..grepped down and killed things matching 'interpreted-code-'
	..added :CONSTRUCTOR NIL to the abstract base class
		DEBUG-FUNCTION
	..deleted unused debug-vm.lisp
	..deleted redundant SETF DOCUMENTATION operations (and updated
		corresponding slot comments in DEF!STRUCT DEBUG-SOURCE
		in some cases)
	..no need for DEBUG-SOURCE-ROOT-NUMBER to be inline