[9] RFC: aarch32 changes for JDK-8144534: Refactor templateInterpreter and templateInterpreterGenerator functions

[Alex Kashchenko]

Hi,

This change is a part of the merge of aarch32-jdk9 with jdk-9+99 
mainline tag.

  - mainline issue: https://bugs.openjdk.java.net/browse/JDK-8144534
  - discussion thread: 
http://mail.openjdk.java.net/pipermail/hotspot-dev/2015-December/020934.html
  - aarch32 patch: 
http://cr.openjdk.java.net/~akasko/jdk9/tag_99/aarch32-8144534.00.patch

Patch may be applied with patch -p2 on top of aarch32-jdk9 forest merged 
with jdk-9+99 tag, I wrote more details on that merge in this thread - 
http://mail.openjdk.java.net/pipermail/aarch32-port-dev/2016-June/000350.html

Current aarch32 change is very small, but this mainline change is only a 
preliminary change for the 
https://bugs.openjdk.java.net/browse/JDK-8074457 one. Looking for 
comments whether it is better to stay closer to mainline, refactoring 
templateInterpreter_aarch32 and templateInterpreterGenerator_aarch32 in 
a way similar to aarch64, or is it better to keep aarch32 changes to 
mininal (that may make Zero interpreter non-functional in aarch32-jdk9 
forest).

-- 
-Alex