w6a: replace private streq with strings.compare (Wave-2 hand-rolled->lib)

selfhost/cmd/w6a/parse.ww

@@ -156,12 +156,10 @@ export fn init(a: *asm_, file: str, src: *u8, len: u64) void = {
 	a.errs = 0;
 };
 
-// `streq(str,str)` lives in asm.ww — same bundle, single definition.
-
 export fn intern(a: *asm_, name: str) *asym = {
 	let s: *asym = a.syms;
 	for (s != nil) {
-		if (streq(s.name, name)) { return s; };
+		if (strings.compare(s.name, name) == 0) { return s; };
 		s = s.snext;
 	};
 	let n: *asym = alloc(asym { name = name, snext = a.syms })!;