Extend the ElementAccessInfo machinery with support for elements kind
transitions, which can be either in-place updates of the map (i.e. when
going from FAST_SMI_ELEMENTS to FAST_ELEMENTS) or instance migrations
utilizing the TransitionElementsKindStub.

R=jarin@chromium.org
BUG=v8:4470
LOG=n

Review URL: https://codereview.chromium.org/1452563002

Cr-Commit-Position: refs/heads/master@{#32003}