Unsafe: Recognize intrinsics for 1.8 java.util.concurrent
With unit test.

Recognizing the 1.8 methods as intrinsics is the first step
towards providing efficient implementation on all architectures.
Where not implemented (everywhere for now), the methods fall back
to the JNI native or reference implementation.

NOTE: needs iam's CL first!


Change-Id: Ife65e81689821a16cbcdd2bb2d35641c6de6aeb6
15 files changed