Initial version of Go bindings.

This code is based on the existing LLVM Go bindings project hosted at:
https://github.com/go-llvm/llvm

Note that all contributors to the gollvm project have agreed to relicense
their changes under the LLVM license and submit them to the LLVM project.

Differential Revision: http://reviews.llvm.org/D5684

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219976 91177308-0d34-0410-b5e6-96231b3b80d8

utils/lit/lit/discovery.py

@@ -91,7 +91,7 @@ def getLocalConfig(ts, path_in_suite, litConfig, cache):
 
         # Otherwise, copy the current config and load the local configuration
         # file into it.
-        config = copy.copy(parent)
+        config = copy.deepcopy(parent)
         if litConfig.debug:
             litConfig.note('loading local config %r' % cfgpath)
         config.load_from_path(cfgpath, litConfig)