hasMethod method
Whether this enum value defines a bridged instance method (or operator)
named method. Mirrors the lookup order used by invoke so callers (e.g.
the interpreter's binary/unary operator dispatch) can probe for a bridged
operator method — such as the &, |, ~ overloads on Flutter's
WidgetState — before falling back to the built-in operator handling.
Implementation
bool hasMethod(String method) =>
_methods.containsKey(method) || enumType.methods.containsKey(method);