hg: jdk9/dev/langtools: 8172287: improve intellij logging to cover javac internal errors

[maurizio.cimadamore at oracle.com]

Changeset: 43dfd4410cdc
Author:    mcimadamore
Date:      2017-01-05 19:10 +0000
URL:       http://hg.openjdk.java.net/jdk9/dev/langtools/rev/43dfd4410cdc

8172287: improve intellij logging to cover javac internal errors
Summary: add new message kind to custom intellij ant logger
Reviewed-by: jjg

! make/intellij/src/idea/LangtoolsIdeaAntLogger.java