hg: valhalla/valhalla: 8212080: Null checks are missing in withfield for flattened/flattenable fields in the interpreter

[frederic.parain at oracle.com]

Changeset: 10438ad636e9
Author:    fparain
Date:      2018-10-12 09:02 -0400
URL:       http://hg.openjdk.java.net/valhalla/valhalla/rev/10438ad636e9

8212080: Null checks are missing in withfield for flattened/flattenable fields in the interpreter
Reviewed-by: dsimms

! src/hotspot/share/interpreter/interpreterRuntime.cpp
+ test/hotspot/jtreg/runtime/valhalla/valuetypes/TestFieldNullability.java