tools: auto fix custom eslint rule for buffer-constructor.js
This implements an es-lint fixer method to fix the usage of Deprecated Buffer() constructor.
Also adds some more test cases to the eslint rule.
Refs: https://github.com/nodejs/node/issues/16636
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
commit message follows commit guidelines
Affected core subsystem(s)
Tools