follow-up: extend extractObjectRestParamBindingsWalk to cover class methods and object-literal methods

[carlos-alm]

Deferred from PR #1350 review.

Original comment: #1350 (comment)

extractObjectRestParamBindingsWalk (Phase 8.3f) handles function_declaration, generator_function_declaration, and variable_declarator (arrow/function expressions), but not method_definition nodes inside class bodies or method shorthand inside object literals.

A pattern like:

class Foo {
  bar({ a, ...rest }) {
    rest.m();  // this edge is not resolved
  }
}

would never emit a binding for bar because the extractor does not walk method_definition nodes.

Context: This is a known scope limitation of Phase 8.3f. It is out of scope for PR #1350 which focuses on the core function/arrow-function case. Extending coverage to class methods and object-literal method shorthand is a logical follow-up.