[8u20] Request for approval: 8032814 - LineNumberTable/LocalVariableTable tables duplication for the "-v -l" combination of options

[Alexander Zuev]

Another one backport from the jdk9.

Bug: https://bugs.openjdk.java.net/browse/JDK-8032814
Fix pushed as: 
http://hg.openjdk.java.net/jdk9/dev/langtools/rev/5372045732cb
Fix applies without an issue to 
http://hg.openjdk.java.net/jdk8u/jdk8u-dev/langtools
Webrev is available at: http://cr.openjdk.java.net/~kizune/8033978/webrev.00

/Alex