Extract to function in upper scope

We have Extract to function in module scope and Extract to inner function in function xxx(which is Extract to function in current scope), we should also have Extract to function in upper scope. With it, we can:

const g = 'g';
export function A() {
  const a_local = 'a';
  return function B() {
    const b_local = 'b';
    return function C() {
      const c_local = 'c';
      // the bottom will be extracted to function upper scope
      console.log(g, a_local, b_local, c_local);
      // the above will be extracted to function upper scope
    }
  }
}

After the extraction, code will be:

const g = 'g';
export function A() {
  const a_local = 'a';
  return function B() {
    const b_local = 'b';
    function newFunction(c_local: string) {
      console.log(g, a_local, b_local, c_local);
    }
    return function C() {
      const c_local = 'c';
      newFunction(c_local);
    }
  }
}

Start by locating the implementations and tests for “Extract to function in module scope” and “Extract to function in current scope.” Extend the existing refactoring behavior so extraction can target the upper function scope while passing variables from deeper scopes as parameters, and add coverage matching the TypeScript example.