ART: Mark move constructors with noexcept

As libc++ is pessimized even under -fno-exception, revert our
previous opinion on clang-tidy warnings and add noexcept keywords.

Bug: 117098004
Test: WITH_TIDY=1 mmma art
Change-Id: I4ab3ad1976f6feb6da98d36e62490e31dbe6a6b2