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[cc2-qbe] Add emission of local variables

Local variables must be allocated in the current stack of the defined
function.

--- a/cc2/arch/qbe/code.c

+++ b/cc2/arch/qbe/code.c

@@ -164,15 +164,24 @@

 writeout(void)

 {

 	Symbol *p;

+	Type *tp;

 	if (curfun->kind == GLOB)

 		fputs("export ", stdout);

-	printf("function %s $%s(", size2asm(&curfun->rtype), symname(curfun));

+	printf("function %s %s(\n", size2asm(&curfun->rtype), symname(curfun));

 	for (p = locals; p && p->type.flags & PARF; p = p->next)

-		printf("%s %s,", size2asm(&p->type), symname(p));

+		printf("\t%s %s,\n", size2asm(&p->type), symname(p));

-	puts("){");

+	puts(")\n{");

+

+	for ( ; p; p = p->next) {

+		tp = &p->type;

+		printf("\t%s %s= alloc%d %d\n",

+		       symname(p), size2asm(tp), tp->size, tp->align);

+	}

+

+

 	puts("}");

 }