Does [reflectee] contain the instance reflected by this mirror?
This will always be true in the local case (reflecting instances
in the same isolate), but only true in the remote case if this
mirror reflects a simple value.
Returns true if this mirror is equal to other.
The equality holds if and only if
(1) other is a mirror of the same kind
and
(2) either
(a) hasReflectee is true and so is
identical(reflectee, other.reflectee)
or
(b) the remote objects reflected by this mirror and
by other are identical.
Invokes a setter and returns a mirror on the result. The setter
may be either the implicit setter for a non-final field or a
user-defined setter method.