8162108: Rename weakCompareAndSetVolatile to weakCompareAndSet
Reviewed-by: martin

8162106: Remove VarHandle.addAndGet
Reviewed-by: shade, redestad

8161444: VarHandles should provide access bitwise atomics
8162107: Add acquire/release variants for getAndSet and getAndAdd
Reviewed-by: shade, redestad

8164982: Fix legal notices in java/lang, java/net, java/util tests.
Reviewed-by: darcy, iris

8154737: Rename VarHandle.compareAndExchangeVolatile to VarHandle.compareAndExchange
Reviewed-by: shade

8157726: VarHandles/Unsafe should support sub-word atomic ops
Reviewed-by: psandoz, vlivanov, lagergren

8156485: MethodHandles.varHandleExactInvoker should perform exact checks
Reviewed-by: vlivanov

8151705: VarHandle.AccessMode enum names should conform to code style
Reviewed-by: mhaupt, shade, redestad

8149644: Integrate VarHandles
Reviewed-by: coffeys, mhaupt, vlivanov
Contributed-by: paul.sandoz@oracle.com, aleksey.shipilev@oracle.com