[8u-dev] request for review and approval to backport JDK-8037546, JDK-8054220 and JDK-8058227

[Jan Lahoda]

Hello,

I'd like to ask for an approval to backport the following two fixes to 
8u-dev:

Bug: https://bugs.openjdk.java.net/browse/JDK-8037546
jdk9 fix: http://hg.openjdk.java.net/jdk9/dev/langtools/rev/441711fd360d
(this fix is a pre-requisite for the following fix)

Bugs: https://bugs.openjdk.java.net/browse/JDK-8054220
       https://bugs.openjdk.java.net/browse/JDK-8058227
jdk9 fix: http://hg.openjdk.java.net/jdk9/dev/langtools/rev/c4a6ba06abeb

Both fixes apply cleanly to 8u-dev/langtools after unshuffling.

Thanks,
     Jan