IDEA-CR-49176: inline function doesn't copy docstring, but keeps the first-line comment (PY-36469, PY-36491)

GitOrigin-RevId: db1fbb5178892db955678dfcec684a5af7f987c6

python/testData/refactoring/inlineFunction/keepFirstComment/main.after.py

@@ -0,0 +1,9 @@
+def foo():
+    # comment on the first line
+    print(42)
+    return 42
+
+
+# comment on the first line
+print(42)
+res = 42

python/testData/refactoring/inlineFunction/keepFirstComment/main.py

@@ -0,0 +1,7 @@
+def foo():
+    # comment on the first line
+    print(42)
+    return 42
+
+
+res = fo<caret>o()

python/testData/refactoring/inlineFunction/removingDocstring/main.after.py

@@ -0,0 +1,11 @@
+def foo():
+    """
+    Docstring for the function
+    :return: int
+    """
+    print(42)
+    return 42
+
+
+print(42)
+res = 42

python/testData/refactoring/inlineFunction/removingDocstring/main.py

@@ -0,0 +1,10 @@
+def foo():
+    """
+    Docstring for the function
+    :return: int
+    """
+    print(42)
+    return 42
+
+
+res = fo<caret>o()