Summary: Add JDK code of the Wisp implementation

Test Plan: all Wisp tests

Reviewed-by: yuleil, shiyuexw, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/113

Reviewed-by: forax, jrose

Summary: Catch missing-because-illegal case for itable entries and use an exception-throwing method instead of null.
Reviewed-by: acorn, jrose, coleenp
Contributed-by: david.r.chase@oracle.com

Reviewed-by: jrose, alanb, twisti

Summary: Add Unsafe addAndGet() methods which have intrinsics in Hotspot (7023898)
Reviewed-by: alanb, kvn

Summary: Add three memory-ordering intrinsics to the sun.misc.Unsafe class.
Reviewed-by: twisti, kvn
Contributed-by: NAleksey Shipilev <aleksey.shipilev@oracle.com>

Reviewed-by: chegar, ksrini

Reviewed-by: alanb, dholmes, dsamersoff, sspitsyn, psandoz

6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, mhaupt, forax
Contributed-by: NJohn Rose &lt;john.r.rose@oracle.com&gt;, Christian Thalinger &lt;christian.thalinger@oracle.com&gt;, Michael Haupt <michael.haupt@oracle.com>

Reviewed-by: lancea, chegar, smarks

Reviewed-by: darcy, weijun

Summary: JDK API and runtime (partial) for anonk, meth, indy
Reviewed-by: mr