fixed PY-5525 Move statement: loses code on moving one-line comment up to function with nested indent

python/testData/mover/commentUp.py

@@ -0,0 +1,6 @@
+def f():
+    if True:
+        a = 1
+    else:
+        a = 2
+#comment<caret>

python/testData/mover/commentUp_afterDown.py

@@ -0,0 +1,7 @@
+def f():
+    if True:
+        a = 1
+    else:
+        a = 2
+
+#comment

python/testData/mover/commentUp_afterUp.py

@@ -0,0 +1,6 @@
+#comment
+def f():
+    if True:
+        a = 1
+    else:
+        a = 2