fixed PY-9337 Copy paste doesn't always preserve the relative indentation of what is pasted.

check if we need to add leading spaces to pasted text

python/testData/copyPaste/InnerToOuterFunction.after.py

@@ -0,0 +1,15 @@
+# original function  # this is line 1 of the code.
+def foo():
+    print 'f00'
+    def bar(num):
+        for _ in range(num):
+            print 'bar'
+    bar(7)
+
+
+def bar(num):
+    for _ in range(num):
+        print 'bar'
+
+
+bar(7)

python/testData/copyPaste/InnerToOuterFunction.dst.py

@@ -0,0 +1,9 @@
+# original function  # this is line 1 of the code.
+def foo():
+    print 'f00'
+    def bar(num):
+        for _ in range(num):
+            print 'bar'
+    bar(7)
+
+<caret>

python/testData/copyPaste/InnerToOuterFunction.src.py

@@ -0,0 +1,10 @@
+# original function  # this is line 1 of the code.
+def foo():
+    print 'f00'
+    <selection>def bar(num):
+        for _ in range(num):
+            print 'bar'
+    bar(7)</selection><caret>
+
+
+