assert(_6 == 0)
	f32 = imag(c64)
	f64 = imag(c128)
	f32 = imag /* ERRORx `cannot use .* in assignment` */ (c128)
	f64 = imag /* ERRORx `cannot use .* in assignment` */ (c64)
	imag /* ERROR "not used" */ (c64)
	_, _ = f32, f64

	// complex type may not be predeclared
	type C64 complex64
	type C128 complex128
	var x64 C64
	var x128 C128
	f32 = imag(x64)
	f64 = imag(x128)

	var a []complex64

	if !m[GrabBag{f64: 1.0}] {
		panic("f64 not found")
	}
	m[GrabBag{c64: 1.0i}] = true
	if !m[GrabBag{c64: 1.0i}] {
		panic("c64 not found")
	}
	m[GrabBag{c128: 1.0i}] = true
	if !m[GrabBag{c128: 1.0i}] {
		panic("c128 not found")
	}
	m[GrabBag{s: "foo"}] = true
	if !m[GrabBag{s: "foo"}] {
		panic("string not found")
	}
	m[GrabBag{i0: "foo"}] = true
	if !m[GrabBag{i0: "foo"}] {