#### Fix unstable template literals with embedded languages (#13532 by @thorn0)

If a template literal with embedded syntax is the only argument of a call or the body of an arrow function and has leading and trailing whitespace, it won't be printed on a new line.

<!-- prettier-ignore -->
```js
// Input
foo(/* HTML */ ` <!-- bar1 --> bar <!-- bar2 --> `);

// Prettier stable (first output)
foo(
  /* HTML */ `
    <!-- bar1 -->
    bar
    <!-- bar2 -->
  `
);

// Prettier stable (second output)
foo(/* HTML */ `
  <!-- bar1 -->
  bar
  <!-- bar2 -->
`);

// Prettier main (first output)
foo(/* HTML */ `
  <!-- bar1 -->
  bar
  <!-- bar2 -->
`);
```