tree 1cb0198a987d361bf9b71d41cf3f4d9e7bb11711
parent 6c10eac70123104a2b48eaf58075374e155ed12d
author Francois-Rene Rideau <tunes@google.com> 1442529688 +0000
committer Damien Martin-Guillerez <dmarting@google.com> 1442825629 +0000

Refactor SkylarkList to allow MutableList

Make SkylarkList no longer read-only to match Python and the BUILD language.
Instead, subject it to a Mutability object inherited from the Environment.

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MOS_MIGRATED_REVID=103332973