bpo-42246: Make sure that line number is correct after a return, as required by PEP 626 (GH-23495)

Make sure that line number is correct after a return, as defined by PEP 626.
diff --git a/Lib/test/test_dis.py b/Lib/test/test_dis.py
index 9cd11d3..d0743d6 100644
--- a/Lib/test/test_dis.py
+++ b/Lib/test/test_dis.py
@@ -131,12 +131,14 @@ def bug708901():
              12 STORE_FAST               0 (res)
 
 %3d          14 JUMP_ABSOLUTE           10
-        >>   16 LOAD_CONST               0 (None)
+
+%3d     >>   16 LOAD_CONST               0 (None)
              18 RETURN_VALUE
 """ % (bug708901.__code__.co_firstlineno + 1,
        bug708901.__code__.co_firstlineno + 2,
        bug708901.__code__.co_firstlineno + 1,
-       bug708901.__code__.co_firstlineno + 3)
+       bug708901.__code__.co_firstlineno + 3,
+       bug708901.__code__.co_firstlineno + 1)
 
 
 def bug1333982(x=[]):
@@ -295,13 +297,15 @@ def bug1333982(x=[]):
              52 STORE_FAST               0 (e)
              54 DELETE_FAST              0 (e)
              56 RERAISE
-        >>   58 RERAISE
+
+%3d     >>   58 RERAISE
 """ % (TRACEBACK_CODE.co_firstlineno + 1,
        TRACEBACK_CODE.co_firstlineno + 2,
        TRACEBACK_CODE.co_firstlineno + 5,
        TRACEBACK_CODE.co_firstlineno + 3,
        TRACEBACK_CODE.co_firstlineno + 4,
-       TRACEBACK_CODE.co_firstlineno + 5)
+       TRACEBACK_CODE.co_firstlineno + 5,
+       TRACEBACK_CODE.co_firstlineno + 3)
 
 def _fstring(a, b, c, d):
     return f'{a} {b:4} {c!r} {d!r:4}'