Preserve trailing semicolons when using fmt: off (#8275)

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

@@ -0,0 +1,69 @@
+---
+source: crates/ruff_python_formatter/tests/fixtures.rs
+input_file: crates/ruff_python_formatter/resources/test/fixtures/ruff/fmt_on_off/trailing_semicolon.py
+---
+## Input
+```py
+def f():
+    # fmt: off
+    a = 10
+
+    if True:
+        with_semicolon = 10   \
+            ;
+
+formatted   = true;
+
+
+def f():
+    # fmt: off
+
+    if True:
+        with_semicolon = 20 \
+            ; # comment
+
+
+# fmt: off
+statement = 0 \
+    ;
+# fmt: on
+a = 10
+
+# fmt: off
+last_statement_with_semi   ;
+```
+
+## Output
+```py
+def f():
+    # fmt: off
+    a = 10
+
+    if True:
+        with_semicolon = 10   \
+            ;
+
+
+formatted = true
+
+
+def f():
+    # fmt: off
+
+    if True:
+        with_semicolon = 20 \
+            ; # comment
+
+
+# fmt: off
+statement = 0 \
+    ;
+# fmt: on
+a = 10
+
+# fmt: off
+last_statement_with_semi   ;
+```
+
+
+