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, kvn, mhaupt
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>

Summary: improvements of TraceMethodHandles for JSR292
Reviewed-by: never, twisti

Summary: improvements of frame_describe
Reviewed-by: never, twisti

Reviewed-by: kvn, jrose, twisti

Summary: check for single stepping when dispatching invokes from method handles
Reviewed-by: coleenp, twisti, kvn, dsamersoff

Reviewed-by: kvn, jrose