add a SETUP_WITH opcode
It speeds up the with statement and correctly looks up the special
methods involved.
diff --git a/Lib/opcode.py b/Lib/opcode.py
index 24d5dcc..7c3962d 100644
--- a/Lib/opcode.py
+++ b/Lib/opcode.py
@@ -181,7 +181,10 @@
def_op('CALL_FUNCTION_VAR', 140) # #args + (#kwargs << 8)
def_op('CALL_FUNCTION_KW', 141) # #args + (#kwargs << 8)
def_op('CALL_FUNCTION_VAR_KW', 142) # #args + (#kwargs << 8)
-def_op('EXTENDED_ARG', 143)
-EXTENDED_ARG = 143
+
+jrel_op('SETUP_WITH', 143)
+
+def_op('EXTENDED_ARG', 145)
+EXTENDED_ARG = 145
del def_op, name_op, jrel_op, jabs_op