Formatter crashes when there are comments in array literals

**Describe the bug**

If one has a comment, on its own line, inside an array literal, the formatter crashes. I suspect

```
E0124 16:38:30.802721 22622349 json-rpc-dispatcher.cc:104] Method error for 'textDocument/formatting' :absl::container_internal::raw_hash_map<>::at
[Error - 4:38:30 PM] Request textDocument/formatting failed.
Message: absl::container_internal::raw_hash_map<>::at
Code: -32603
```

**To Reproduce**

```
pub const TABLE = [
//break formatter
(u32:0, u32:0), (u32:0, u32:0), (u32:0, u32:0), (u32:0, u32:0), (u32:0, u32:0), (u32:0, u32:0),
(u32:0, u32:0),
];
```

Run the formatter.

**Expected behavior**

It should certainly not crash. In the short term, maybe it should ignore (not format) this particular syntactical block, and format the rest of the file.
Not to be prescriptive about how to format... but since you asked: It should format like this, or similar. It should probably align the comment with the other array elements. It should format the non-comments as if the comment didn't exist (but put the comment back where it belongs):
```
pub const TABLE = [
//break formatter
(u32:0, u32:0), (u32:0, u32:0), (u32:0, u32:0), (u32:0, u32:0), (u32:0, u32:0), (u32:0, u32:0),
(u32:0, u32:0),
];
```