BUILD_LIST followed by BINARY_SUBSCR can be optimized to a BUILD_TUPLE if all members of the list are constants

[alex]

BPO	8758
Nosy	@birkenfeld, @alex

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2010-08-01.22:59:43.908>
created_at = <Date 2010-05-18.21:46:08.247>
labels = ['interpreter-core']
title = 'BUILD_LIST followed by BINARY_SUBSCR can be optimized to a BUILD_TUPLE if all members of the list are constants'
updated_at = <Date 2010-08-01.22:59:43.906>
user = 'https://github.com/alex'

bugs.python.org fields:

activity = <Date 2010-08-01.22:59:43.906>
actor = 'georg.brandl'
assignee = 'none'
closed = True
closed_date = <Date 2010-08-01.22:59:43.908>
closer = 'georg.brandl'
components = ['Interpreter Core']
creation = <Date 2010-05-18.21:46:08.247>
creator = 'alex'
dependencies = []
files = []
hgrepos = []
issue_num = 8758
keywords = []
message_count = 2.0
messages = ['106008', '112397']
nosy_count = 2.0
nosy_names = ['georg.brandl', 'alex']
pr_nums = []
priority = 'normal'
resolution = 'rejected'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue8758'
versions = ['Python 2.7', 'Python 3.3']

[alex]

We do the same thing for a BUILD_LIST followed by a COMPARE_OP (in).

[birkenfeld]

I don't think this happens often enough to warrant optimizing.