[9] RFR 8184119 Incorrect return processing for the LF editor of MethodHandles.permuteArguments

[Paul Sandoz]

Hi,

Please review this small fix to MethodHandle.permuteArguments that causes a VM 
crash:

  
http://cr.openjdk.java.net/~psandoz/jdk9/JDK-8184119-permute-args-return-an-arg/webrev/
 
<http://cr.openjdk.java.net/~psandoz/jdk9/JDK-8184119-permute-args-return-an-arg/webrev/>
  https://bugs.openjdk.java.net/browse/JDK-8184119 
<https://bugs.openjdk.java.net/browse/JDK-8184119>

This will also require back porting to 8.

Thanks go to Jackson Davis for finding and reporting this issue.

Thanks,
Paul.