clean up a few error messages;

disable func redeclaration mismatch test;
fix golden.out

R=ken
OCL=32883
CL=32883

src/cmd/gc/dcl.c

@@ -837,7 +837,7 @@ typedcl2(Type *pt, Type *t)
 	if(pt->etype == TINTER && t->etype == TFORWINTER)
 		return;
 	if(!cvttype(pt, t)) {
-		yyerror("redeclaration of %T during imports\n\t%lT [%p]\n\t%lT [%p]", pt, pt, pt, t, t);
+		yyerror("redeclaration of %T during imports", pt);
 		return;
 	}
 	return;

src/cmd/gc/typecheck.c

@@ -400,7 +400,7 @@ reswitch:
 			checkwidth(t);
 		}
 		if(!lookdot(n, t)) {
-			yyerror("%#N undefined (type %p %T has no field %S)", n, t, t, n->right->sym);
+			yyerror("%#N undefined (type %T has no field %S)", n, t, n->right->sym);
 			goto error;
 		}
 		switch(n->op) {

test/golden.out

@@ -121,7 +121,7 @@ do break
 broke
 
 =========== fixedbugs/bug081.go
-fixedbugs/bug081.go:5: fatal error: loop
+fixedbugs/bug081.go:5: fatal error: typecheck loop
 
 =========== fixedbugs/bug093.go
 M