hg: amber/amber/langtools: Create branch for constant dynamic + constant folding

[maurizio.cimadamore at oracle.com]

Changeset: e4b8b173e0fa
Author:    mcimadamore
Date:      2017-05-04 15:33 +0100
URL:       http://hg.openjdk.java.net/amber/amber/langtools/rev/e4b8b173e0fa

Create branch for constant dynamic + constant folding