1. Fixes bug where this would not rewrap:
```rs
// This is the first long comment block to be wrapped.
fn my_func(a: u32);
// This is the second long comment block to be wrapped.
```
2. Comment prefix boundaries (Notice now they don't merge between
different comment prefix):
Initial text:
```rs
// A regular long long comment to be wrapped.
// A second regular long comment to be wrapped.
/// A documentation long comment to be wrapped.
```
Upon rewrap:
```rs
// A regular long long comment to be
// wrapped. A second regular long
// comment to be wrapped.
/// A documentation long comment to be
/// wrapped.
```
3. Indent boundaries (Notice now they don't merge between different
indentation):
Initial text:
```rs
fn foo() {
// This is a long comment at the base indent.
// This is a long comment at the base indent.
// This is a long comment at the next indent.
// This is a long comment at the next indent.
// This is a long comment at the base indent.
}
```
Upon rewrap:
```rs
fn foo() {
// This is a long comment at the base
// indent. This is a long comment at the
// base indent.
// This is a long comment at the
// next indent. This is a long
// comment at the next indent.
// This is a long comment at the base
// indent.
}
```
Release Notes:
- Fixed an issue where rewrap would not work with selection when two
comment blocks are separated with line of code.
- Improved rewrap to respect changes in indentation or comment prefix
(e.g. `//` vs `///`) as boundaries so that it doesn't merge them into
one mangled text.