Don't move type param opening parenthesis comment (#8163)

## Summary

This PR fixes the issue to avoid collapsing the type param declaration
if
there's a comment after the opening parenthesis. For example,

```python
type foo[  # comment
    A,
    B
] = int
```

Here, we'll preserve the comment on the same line as is being done for
other
similar type of nodes.

## Test Plan

Add a new test case for it, update the snapshots, and validate the
ecosystem
check.

### Formatter ecosystem

#### `main`

| project | similarity index | total files | changed files |

|----------------|------------------:|------------------:|------------------:|
| cpython | 0.75803 | 1799 | 1647 |
| django | 0.99983 | 2772 | 34 |
| home-assistant | 0.99953 | 10596 | 186 |
| poetry | 0.99891 | 317 | 17 |
| transformers | 0.99966 | 2657 | 330 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99978 | 3669 | 20 |
| warehouse | 0.99977 | 654 | 13 |
| zulip | 0.99970 | 1459 | 22 |

#### `dhruv/type-params`

| project | similarity index | total files | changed files |

|----------------|------------------:|------------------:|------------------:|
| cpython | 0.75803 | 1799 | 1647 |
| django | 0.99983 | 2772 | 34 |
| home-assistant | 0.99953 | 10596 | 186 |
| poetry | 0.99891 | 317 | 17 |
| transformers | 0.99966 | 2657 | 330 |
| twine | 1.00000 | 33 | 0 |
| typeshed | 0.99978 | 3669 | 20 |
| warehouse | 0.99977 | 654 | 13 |
| zulip | 0.99970 | 1459 | 22 |

fixes: #8162

crates/ruff_python_formatter/resources/test/fixtures/ruff/statement/type_alias.py

@@ -81,6 +81,10 @@
  D, # trailing comment
  # leading close bracket comment
 ] = int # trailing value comment
+type type_params_single_comment[ # trailing open bracket comment
+ A,
+ B
+] = int
 type type_params_all_kinds[type_var, *type_var_tuple, **param_spec] = int
 
 # type variable bounds

crates/ruff_python_formatter/src/type_param/type_params.rs

@@ -1,11 +1,10 @@
-use ruff_formatter::write;
 use ruff_formatter::FormatResult;
 use ruff_python_ast::AstNode;
 use ruff_python_ast::TypeParams;
 use ruff_text_size::Ranged;
 
 use crate::builders::PyFormatterExtensions;
-use crate::comments::{trailing_comments, SourceComment};
+use crate::comments::SourceComment;
 use crate::expression::parentheses::parenthesized;
 use crate::prelude::*;
 
@@ -24,15 +23,16 @@ impl FormatNodeRule<TypeParams> for FormatTypeParams {
  // ] = ...
  let comments = f.context().comments().clone();
  let dangling_comments = comments.dangling(item.as_any_node_ref());
- write!(f, [trailing_comments(dangling_comments)])?;
 
  let items = format_with(|f| {
  f.join_comma_separated(item.end())
  .nodes(item.type_params.iter())
  .finish()
  });
 
- parenthesized("[", &items, "]").fmt(f)
+ parenthesized("[", &items, "]")
+ .with_dangling_comments(dangling_comments)
+ .fmt(f)
  }
 
  fn fmt_dangling_comments(

crates/ruff_python_formatter/tests/snapshots/format@parentheses__opening_parentheses_comment_value.py.snap

@@ -327,7 +327,9 @@ f3 = { # f3
 
 
 # Non-empty parentheses: These are not allowed without a value
-def f1[T](): # f1
+def f1[ # f1
+ T
+]():
  pass
 
 

crates/ruff_python_formatter/tests/snapshots/format@statement__type_alias.py.snap

@@ -87,6 +87,10 @@ type type_params_comments[ # trailing open bracket comment
  D, # trailing comment
  # leading close bracket comment
 ] = int # trailing value comment
+type type_params_single_comment[ # trailing open bracket comment
+ A,
+ B
+] = int
 type type_params_all_kinds[type_var, *type_var_tuple, **param_spec] = int
 
 # type variable bounds
@@ -201,6 +205,10 @@ type type_params_comments[ # trailing open bracket comment
  D, # trailing comment
  # leading close bracket comment
 ] = int # trailing value comment
+type type_params_single_comment[ # trailing open bracket comment
+ A,
+ B,
+] = int
 type type_params_all_kinds[type_var, *type_var_tuple, **param_spec] = int
 
 # type variable bounds