6979327: method handle invocation should use casts instead of type parameters to specify return type
Summary: Change result type parameters to result type casts.  (Also, replace private placeholder class InvokeDynamic.)
Reviewed-by: twisti

Reviewed-by: twisti

Summary: JDK changes which run atop the corresponding JVM hook
Reviewed-by: never, twisti

Reviewed-by: darcy, weijun

Summary: split MethodHandle.invoke into invokeExact and invokeGeneric; also clean up JVM-to-Java interfaces
Reviewed-by: twisti

Summary: Fill in missing API implementations, fix numerous bugs, adjust APIs towards EG design.
Reviewed-by: twisti

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