trans: callee: normalize trait_ref before use

Fixes #33436 and #33461. Test case is from #33461.

src/test/run-pass/issue-33461.rs

@@ -0,0 +1,36 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use std::marker::PhantomData;
+
+struct TheType<T> {
+    t: PhantomData<T>
+}
+
+pub trait TheTrait {
+    type TheAssociatedType;
+}
+
+impl TheTrait for () {
+    type TheAssociatedType = ();
+}
+
+pub trait Shape<P: TheTrait> {
+    fn doit(&self) {
+    }
+}
+
+impl<P: TheTrait> Shape<P> for TheType<P::TheAssociatedType> {
+}
+
+fn main() {
+    let ball = TheType { t: PhantomData };
+    let handle: &Shape<()> = &ball;
+}