bug148.

R=ken
OCL=31582
CL=31582

src/cmd/gc/subr.c

@@ -1067,7 +1067,7 @@ Tpretty(Fmt *fp, Type *t)
 				return 0;
 			if(s->imported)
 				return 0;
-			if(s->def == N || s->def->op != OTYPE || s->def->type != t || !s->export) {
+			if(t->vargen || !s->export) {
 				fmtprint(fp, "·%s", filename);
 				if(t->vargen)
 					fmtprint(fp, "·%d", t->vargen);

test/golden.out

@@ -93,8 +93,10 @@ BUG: should not compile
 
 =========== bugs/bug148.go
 2 3
-5 7
-BUG: should crash
+interface is main.T, not main.T·bug148·1
+throw: interface conversion
+
+panic PC=xxx
 
 =========== bugs/bug159.go
 xyz: expected 1 2 3 got 3 2 1