RFR: 8087342: crash in klassItable_initialize_itable_for_interface

[Karen Kinnear]

Please review for JDK9:

bug: https://bugs.openjdk.java.net/browse/JDK-8087342
webrev: http://cr.openjdk.java.net/~acorn/8087342.2/webrev/

Crash occurs in product when we should through IncompatibleClassChangeError.

testing:
internal tests: Defmeth (updated), SelectionResolution - product and fastdebug
jprt
jck
jtreg/hotspot_all
jtreg/jdk_streams
test,noncolo.testlist, -atk quick

(jck and macosx testing in progress)

thanks,
Karen