Don't mistake a following if for an elif

In the following code, the comment used to get wrongly associated with the `if False` since it looked like an elif. This fixes it by checking the indentation and adding a regression test
```python
if True:
    pass
else:  # Comment
    if False:
        pass
    pass
```

Originally found in https://github.com/gradio-app/gradio/blob/1570b94a02d23d051ae137e0063974fd8a48b34e/gradio/external.py#L478

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

@@ -62,3 +62,12 @@
     pass
 # Don't drop this comment 3
 x = 3
+
+# Regression test for a following if that could get confused for an elif
+# Originally found in https://github.com/gradio-app/gradio/blob/1570b94a02d23d051ae137e0063974fd8a48b34e/gradio/external.py#L478
+if True:
+    pass
+else:  # Comment
+    if False:
+        pass
+    pass

crates/ruff_python_formatter/src/comments/placement.rs

@@ -357,16 +357,37 @@ fn handle_in_between_bodies_end_of_line_comment<'a>(
             } else {
                 CommentPlacement::trailing(preceding, comment)
             }
-        } else if following.is_stmt_if() || following.is_except_handler() {
+        } else {
             // The `elif` or except handlers have their own body to which we can attach the trailing comment
             // ```python
             // if test:
             //     a
             // elif c: # comment
             //     b
             // ```
-            CommentPlacement::trailing(following, comment)
-        } else {
+            if following.is_except_handler() {
+                return CommentPlacement::trailing(following, comment);
+            } else if following.is_stmt_if() {
+                // We have to exclude for following if statements that are not elif by checking the
+                // indentation
+                // ```python
+                // if True:
+                //     pass
+                // else:  # Comment
+                //     if False:
+                //         pass
+                //     pass
+                // ```
+                let base_if_indent =
+                    whitespace::indentation_at_offset(locator, following.range().start());
+                let maybe_elif_indent = whitespace::indentation_at_offset(
+                    locator,
+                    comment.enclosing_node().range().start(),
+                );
+                if base_if_indent == maybe_elif_indent {
+                    return CommentPlacement::trailing(following, comment);
+                }
+            }
             // There are no bodies for the "else" branch and other bodies that are represented as a `Vec<Stmt>`.
             // This means, there's no good place to attach the comments to.
             // Make this a dangling comments and manually format the comment in

crates/ruff_python_formatter/src/snapshots/ruff_python_formatter__tests__ruff_test__expression__dict_py.snap

@@ -54,6 +54,14 @@ mapping = {
     C: 0.1 * (10.0 / 12),
     D: 0.1 * (10.0 / 12),
 }
+
+# Regression test for formatter panic with comment after parenthesized dict value
+# Originally found in https://github.com/bolucat/Firefox/blob/636a717ef025c16434997dc89e42351ef740ee6b/testing/marionette/client/marionette_driver/geckoinstance.py#L109
+a = {
+    1: (2),
+    # comment
+    3: True,
+}
 ```
 
 
@@ -112,6 +120,14 @@ mapping = {
     C: 0.1 * (10.0 / 12),
     D: 0.1 * (10.0 / 12),
 }
+
+# Regression test for formatter panic with comment after parenthesized dict value
+# Originally found in https://github.com/bolucat/Firefox/blob/636a717ef025c16434997dc89e42351ef740ee6b/testing/marionette/client/marionette_driver/geckoinstance.py#L109
+a = {
+    1: (2),
+    # comment
+    3: True,
+}
 ```
 
 

crates/ruff_python_formatter/src/snapshots/ruff_python_formatter__tests__ruff_test__statement__if_py.snap

@@ -68,6 +68,15 @@ else:
     pass
 # Don't drop this comment 3
 x = 3
+
+# Regression test for a following if that could get confused for an elif
+# Originally found in https://github.com/gradio-app/gradio/blob/1570b94a02d23d051ae137e0063974fd8a48b34e/gradio/external.py#L478
+if True:
+    pass
+else:  # Comment
+    if False:
+        pass
+    pass
 ```
 
 
@@ -137,6 +146,15 @@ else:
     pass
 # Don't drop this comment 3
 x = 3
+
+# Regression test for a following if that could get confused for an elif
+# Originally found in https://github.com/gradio-app/gradio/blob/1570b94a02d23d051ae137e0063974fd8a48b34e/gradio/external.py#L478
+if True:
+    pass
+else:  # Comment
+    if False:
+        pass
+    pass
 ```