Review request for OPENJDK6-34: backport of JDK-6638712 to openjdk6

[Ivan Krylov]

Hello,

please review the fix for OPENJDK6-34: backport of JDK-6638712 to openjdk6
Inference of formal type parameter (unused in formal parameters) is not 
performed

No changes compared to the openjdk7 fix

bug https://java.net/jira/browse/OPENJDK6-34
JDK bug : https://bugs.openjdk.java.net/browse/JDK-8047378
webrev http://cr.openjdk.java.net/~ikrylov/webrev.openjdk6bug34.langtools/

Thank you,
Ivan