RFR: JDK-8013225: Refresh jdk's private ASM to the latest.

[Kumar Srinivasan]

Hello,

Please review changes which essentially contains asm5_future in asm's 
mainline
repository, I have tested this patch with Nashorn (so has Sundar), as 
well as Lambda's
usage.

Fixes that I know of:
1. supports v52.0 class files and JSR 308/Type Annotations changes

Thanks to Remi
2. elimination of "_" usages in variable names
3. several javadoc changes and one reported by Sundar
http://jbs.oracle.com/bugs/browse/JDK-8010083


Thanks
Kumar