<pre>
func(int) int
</pre>

<p>
These two invocations are equivalent:
</p>

<pre>
t.Mv(7)
f := t.Mv; f(7)
</pre>

<p>
Similarly, the expression
</p>

<pre>
pt.Mp
</pre>

<p>
yields a function value of type
</p>

<pre>
func(float32) float32
</pre>

<p>

	nestedCall(func() { x = true })
	if !x {
		t.Fatal("nestedCall did not call func")
	}
}

func testCallbackGC(t *testing.T) {
	nestedCall(runtime.GC)
}

func testCallbackPanic(t *testing.T) {
	// Make sure panic during callback unwinds properly.
	if lockedOSThread() {
		t.Fatal("locked OS thread on entry to TestCallbackPanic")
	}
	defer func() {
		s := recover()
		if s == nil {
			t.Fatal("did not panic")
		}