Removes the reliance on prototype bound methods internally
so that Uint8Arrays can be set as the bound `this` value when calling
the various Buffer methods. Introduces some additional tamper protection
by removing internal reliance on writable properties.
Fixes: https://github.com/nodejs/node/issues/56577
PR-URL: https://github.com/nodejs/node/pull/56578
Reviewed-By: Anna Henningsen <anna@addaleax.net>
