Ensure static private method init run before static property

[JLHwung]

Q	A
Fixed Issues?	Fixes #12905
Patch: Bug Fix?	Y
Major: Breaking Change?
Minor: New Feature?
Tests Added + Pass?	Yes
Documentation PR Link
Any Dependency Changes?
License	MIT

This PR is based on #12917, please review that one first.

As suggested in #12905, this PR places private methods before private static properties, see also the commit message for the rationale.

Per 15.7.12 Runtime Semantics: ClassDefinitionEvaluation, when DefineField is invoked, the class binding used in field initializer will have a receiver F, which has all static methods defined but may still have uninvoked initializer due to the order of DefineField executions on staticFields. Therefore, we place static class methods definition before static field.

For example, the following snippet

class C {
  static #p = 1;
  static get #m() {}
}

currently transforms to

"use strict";

class C {}

var _get_m = function () {};

var _p = {
  writable: true,
  value: 1
};
var _m = {
  get: _get_m,
  set: void 0
};
new C();

in this PR transforms to

"use strict";

class C {}

var _get_m = function () {};

var _m = {
  get: _get_m,
  set: void 0
};
var _p = {
  writable: true,
  value: 1
};
new C();

where _m is placed before _p, so when _p.value is evaluated, the static method descriptor _m will have been defined.

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