fix(es/es2015): Fix injection location of `this` for getter/setter properties

[kdy1]

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Description:

Related issue:

• Closes #8992

[KyleDavidE]

Pathological example but I think this change might break on arrow functions being inside of computed property names. Can you try:

const o1 = {
  x: "a",
  foo() {
    const o2 = {
      get [(() => this.x)()]() {
        return 1;
      },
    };
    console.log(o2.a === 1);
  },
};

o1.foo();