[clang-format] Adjust requires clause wrapping (#101550) (#102078)

Address #101550 by adding OwnLineWithBrace option for RequiresClausePosition. This permits placing a following '{' on the same line as the requires clause.

Thus, instead of:
```
bool Foo ()
  requires(true)
{
  return true;
}
```

we have:
```
bool Foo ()
  requires(true) {
  return true;
}
```

If the function body is empty, we'll get:
```
bool Foo ()
  requires(true) {}
```

I attempted to get a line break between the open and close braces, but
failed. Perhaps that's fine -- it's rare and only happens in the empty
body case.

0 files changed, 0 insertions, 0 deletions