// type, and returns an expression that yields the *runtime._type
// value representing that slice type's element type.
func MakeSliceElemRType(pos src.XPos, n *ir.MakeExpr) ir.Node {
	assertOp2(n, ir.OMAKESLICE, ir.OMAKESLICECOPY)
	if hasRType(n, n.RType, "RType") {
		return n.RType
	}
	return sliceElemRType(pos, n.Type())
}

// RangeMapRType asserts that n is a "range" loop over a map value,

			sel := ms.At(i)
			if got, want := sel.Obj().Name(), m.name; got != want {
				t.Errorf("%s [method %d]: got name = %q at, want %q", src, i, got, want)
			}
			if got, want := sel.Index(), m.index; !sameSlice(got, want) {
				t.Errorf("%s [method %d]: got index = %v, want %v", src, i, got, want)
			}
			if got, want := sel.Indirect(), m.indirect; got != want {