hg: amber/amber/langtools: initial push lambda-leftovers branch

[vicente.romero at oracle.com]

Changeset: b97e0bc944a5
Author:    vromero
Date:      2017-03-23 12:52 -0700
URL:       http://hg.openjdk.java.net/amber/amber/langtools/rev/b97e0bc944a5

initial push lambda-leftovers branch