message: Use the same reference to simplify tests
diff: @@ -7,13 +7,14 @@ describe("Inline Variable", () => {
  let showErrorMessage: ShowErrorMessage;
  let updateWith: UpdateWith;
  let updates: Update[] = [];
  + const inlinableCode = "Hello!";
  beforeEach(() => {
  showErrorMessage = jest.fn();
  updateWith = jest
  .fn()
  .mockImplementation(
  - (_, getUpdates) => (updates = getUpdates('"Hello!"'))
  + (_, getUpdates) => (updates = getUpdates(inlinableCode))
  );
  });
  @@ -49,7 +50,7 @@ console.log(foo);`;
  });
  it("should update code to inline selection where it's referenced (1 reference)", async () => {
  - const code = `const hello = "Hello!";
  + const code = `const hello = ${inlinableCode};
  console.log(hello);`;
  const selection = Selection.cursorAt(0, 14);
  @@ -57,7 +58,7 @@ console.log(hello);`;
  expect(updates).toEqual([
  {
  - code: '"Hello!"',
  + code: inlinableCode,
  selection: new Selection([1, 12], [1, 17])
  },
  {
  @@ -68,7 +69,7 @@ console.log(hello);`;
  });
  it("should update code to inline selection where it's referenced (many references)", async () => {
  - const code = `const hello = "Hello!";
  + const code = `const hello = ${inlinableCode};
  console.log(hello);
  sendMessageSaying(hello).to(world);`;
  const selection = Selection.cursorAt(0, 14);
  @@ -77,11 +78,11 @@ sendMessageSaying(hello).to(world);`;
  expect(updates).toEqual([
  {
  - code: '"Hello!"',
  + code: inlinableCode,
  selection: new Selection([1, 12], [1, 17])
  },
  {
  - code: '"Hello!"',
  + code: inlinableCode,
  selection: new Selection([2, 18], [2, 23])
  },
  {
  