llvm-lit.in: specify file encoding to UTF-8

[davispuh]

Summary

This is needed because otherwise if source dir is at location whose path
contains non-ASCII character then python will complain about SyntaxError

SyntaxError: Non-ASCII character '\xc4' in file /home/Dāvis/libc++/src/build/bin/llvm-lit on line 16, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details

[davispuh]

Fix mistake

[davispuh]

Generated llvm-lit looks like this (in UTF-8)

...
# Variables configured at build time.
llvm_source_root = "/home/Dāvis/libc++/src/llvm"
llvm_obj_root = "/home/Dāvis/libc++/src/build"

# Make sure we can find the lit package.
sys.path.insert(0, os.path.join(llvm_source_root, 'utils', 'lit'))

# Set up some builtin parameters, so that by default the LLVM test suite
# configuration file knows how to find the object tree.
builtin_parameters = { 'build_mode' : "." }


map_config('/home/Dāvis/libc++/src/llvm/projects/libcxx/test/lit.cfg', '/home/Dāvis/libc++/src/build/projects/libcxx/test/lit.site.cfg')
map_config('/home/Dāvis/libc++/src/llvm/utils/lit/tests/lit.cfg', '/home/Dāvis/libc++/src/build/utils/lit/lit.site.cfg')
map_config('/home/Dāvis/libc++/src/llvm/test/lit.cfg.py', '/home/Dāvis/libc++/src/build/test/lit.site.cfg.py')
map_config('/home/Dāvis/libc++/src/llvm/test/Unit/lit.cfg.py', '/home/Dāvis/libc++/src/build/test/Unit/lit.site.cfg.py')

...

[george.karpenkov]

Sounds reasonable, and I don't see it possibly backfiring.

[davispuh]

This issue is still present, why it hasn't been merged?

[george.karpenkov]

@davispuh Someone needs to actually merge the change. Usually, the person who has opened the revision does it, but if they don't have it commit access the reviewer can do it for them (but then it is usually explicitly requested).
Would you like me to merge this?

[davispuh]

In D50201#1356647, @george.karpenkov wrote:

@davispuh Someone needs to actually merge the change. Usually, the person who has opened the revision does it, but if they don't have it commit access the reviewer can do it for them (but then it is usually explicitly requested).
Would you like me to merge this?

Ohh, sorry, I didn't know that. I thought it would be automatically merged once accepted. And yeah I don't have commit access so of course that would be nice. Thanks!

utils/llvm-lit/llvm-lit.in

 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 
 import os
 import sys
 
 config_map = {}
 
 def map_config(source_dir, site_config):
     global config_map