12$: warn on missing semicolon before (expression) or [array]

[strager]

    nextConfig.push({
      proxied_site: "http://localhost:1337",
      port: 8084,
      early_hints: [
        {
          type: "style",
          url: "/style.css",
        },
        {
          type: "script",
          url: "/script.js",
        },
      ],
    })  // WARNING: Missing semicolon or confusing indentation
    ({ statusLine, headers } = await makeProxyRequest());

foo()  // WARNING: Missing semicolon or confusing indentation
[a, b].forEach(f)

[strager]

Idea for the logic for when to report the warning:

1. Found a ( or [ in parse_expression_remainder
2. ( or [ has a leading newline
3. The ('s or ['s column is equal to the statement start's column

Logic 3 is hard to implement currently because quick-lint-js does not track column numbers. Perhaps we can get away with just logic 1 and 2. We would need to check the rate of false positives to decide whether we need logic 3 or not.

[strager]

We need to make sure that a semicolon is legal before reporting the warning. In the following example, a semicolon is not legal before (y) or [z], so we should not report any diagnostic:

let x = (
  f()
  (y)
  [z]
);