commit 57ed2e95d03eae56ba557b8a2d577961a91edf2f
author Tom Cherry <tomcherry@google.com> Mon Jul 22 16:05:36 2019 -0700
committer Tom Cherry <tomcherry@google.com> Tue Jul 23 14:39:38 2019 -0700
tree 4a39211c457d181b091a854d8faeedb1be7170c5
parent d6bc542ae0ad96a60dde82b1e53bd6e3c0d317cb

init: simplify keyword_map

I've heard that keyword_map is too complex, in particular the tuple
and the pair in BuiltinFunctionMap, so this change removes a lot of
that complexity and, more importantly, better documents how all of
this works.

Test: boot, init unit tests

Change-Id: I74e5f9de7f2ec524cb6127bb9da2956b5f307f56