strings.HasPrefix(name, "_Ctype_union_") ||
		strings.HasPrefix(name, "_Ctype_class_")
}

// FuncArg returns a Go type with the same memory layout as
// dtype when used as the type of a C function argument.
func (c *typeConv) FuncArg(dtype dwarf.Type, pos token.Pos) *Type {
	t := c.Type(unqual(dtype), pos)
	switch dt := dtype.(type) {
	case *dwarf.ArrayType: