6g: set kind to KindUnsafePointer where appropriate in reflect structures.

R=rsc, ken2, r
CC=golang-dev
https://golang.org/cl/2355043

src/cmd/gc/reflect.c

@@ -598,6 +598,7 @@ dcommontype(Sym *s, int ot, Type *t)
 	//		alg uint8;
 	//		align uint8;
 	//		fieldAlign uint8;
+        //              kind uint8;
 	//		string *string;
 	//		*nameInfo;
 	//	}
@@ -615,9 +616,11 @@ dcommontype(Sym *s, int ot, Type *t)
 	i = kinds[t->etype];
 	if(t->etype == TARRAY && t->bound < 0)
 		i = KindSlice;
+	if(isptr[t->etype] && t->type->etype == TANY)
+                i = KindUnsafePointer;
 	if(!haspointers(t))
 		i |= KindNoPointers;
-	ot = duint8(s, ot, i);
+	ot = duint8(s, ot, i);  // kind
 	longsymnames = 1;
 	p = smprint("%-T", t);
 	longsymnames = 0;
@@ -810,6 +813,7 @@ ok:
 	case TPTR32:
 	case TPTR64:
 		if(t->type->etype == TANY) {
+                        // ../../pkg/runtime/type.go:/UnsafePointerType
 			ot = dcommontype(s, ot, t);
 			break;
 		}