Let and const support#904

Merged

mhegazy merged 30 commits intomasterfrom

Oct 24, 2014

Commits on Oct 11, 2014

Add es6 target
mhegazy
committed

Commits on Oct 13, 2014

Commits on Oct 16, 2014

Commits on Oct 21, 2014

Create a new flag for diagnostics 'isEarly' and disable emit if this flag is set. Set the flag by default on all let and const errors to ensure we are not emitting invalid JS code.
mhegazy
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respond to code review comments
mhegazy
committed

Commits on Oct 23, 2014

Commits on Oct 24, 2014