[8u60] Backport RFR: JDK-8051045 (fix) and and JDK-8080428 (test fix): HotSpot fails to wrap Exceptions from invokedynamic in a BootstrapMethodError

[Andreas Eriksson]

Hi,

I'd like to backport the fix for
8051045 <https://bugs.openjdk.java.net/browse/JDK-8051045>: HotSpot 
fails to wrap Exceptions from invokedynamic in a BootstrapMethodError
http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/f7591a94925e

And at the same time the related test fix
8080428 <https://bugs.openjdk.java.net/browse/JDK-8080428>: [TESTBUG] 
java/lang/invoke/8022701/MHIllegalAccess.java - FAIL: Unexpected wrapped 
exception java.lang.BootstrapMethodError
http://hg.openjdk.java.net/jdk9/hs-rt/jdk/rev/8cad1a9fee4a

The changes imported cleanly from the jdk9 changesets and jprt runs 
without failures.

Regards,
Andreas