[8u20] request for approval to backport JDK-8033136: RoundEnvironment.getElementsAnnotatedWith receives wrong elements

[Jan Lahoda]

Hello,

I'd like to ask for an approval to backport fix for:
Bug: https://bugs.openjdk.java.net/browse/JDK-8030049
Backport bug: https://bugs.openjdk.java.net/browse/JDK-8033136
jdk9 fix: http://hg.openjdk.java.net/jdk9/dev/langtools/rev/7163a6b6d8ea

The patch requires a few trivial tweaks to apply to jdk8u-dev/langtools:
-two changes in copyright headers
-the context in one of the hunks has a diamond operator in 
jdk9/langtools, but does not have the diamond operator in 
jdk8-dev/langtools. Fixed in the patch by undoing the diamond operator 
in the context.

Attaching the updated patch that applies to:
http://hg.openjdk.java.net/jdk8u/jdk8u-dev/langtools

Thanks,
    Jan