RFR: 8234632 [lworld] Create fast path for putfield of inlined values

[Frederic Parain]

Please review this change in the interpreter replacing the runtime
call in putfield with ASM access_value_copy when writing flattened fields.

CR:
https://bugs.openjdk.java.net/browse/JDK-8234632

Webrev:
http://cr.openjdk.java.net/~fparain/8234632/webrev.00/index.html

Testing: tier 1,2 and 3 with Mach5.

Thank you,

Fred