[9] RFR (S): 8038261: JSR292: cache and reuse typed array accessors

[Vladimir Ivanov]

http://cr.openjdk.java.net/~vlivanov/8038261/webrev.00
https://bugs.openjdk.java.net/browse/JDK-8038261
56 lines changed: 26 ins; 14 del; 16 mod

Cache typed array element getters/setters and reuse them.
Initially, it was part of 8037209, but I decided to integrate it 
separately.

Contributed-by: john.r.rose at oracle.com

Testing: jdk/java/{lang/invoke,util}, vm.mlvm.testlist, nashorn, jruby

Configs: -ea -esa -Xverify:all -D...COMPILE_THRESHOLD={0,30}

Best regards,
Vladimir Ivanov