commit 620071a92005f915e17694c2958681e33e3e3307
author Tim van der Lippe <tvanderlippe@chromium.org> Wed Sep 25 13:33:32 2019 +0000
committer Commit Bot <commit-bot@chromium.org> Wed Sep 25 13:33:32 2019 +0000
tree 86ae3bb1b768875479712af8380b074c863f4abd
parent 69d7770a9625702379f585c095000aaa4cfd2dff

Update the input language level of Closure compiler

This allows us to use more modern features like Object spread.

Change-Id: I3a8a119443cf43b27e3ac9390e188408976d82e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1823847
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Tim Van der Lippe <tvanderlippe@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#699736}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: f7348e93165873639e57c78bd877e0640a7a6317

scripts/compile_frontend.py

diff --git a/scripts/compile_frontend.py b/scripts/compile_frontend.py
index afe10c5..0f251eb 100755
--- a/scripts/compile_frontend.py
+++ b/scripts/compile_frontend.py
@@ -245,7 +245,7 @@
     'SIMPLE_OPTIMIZATIONS',
     '--warning_level',
     'VERBOSE',
-    '--language_in=ECMASCRIPT_2017',
+    '--language_in=ECMASCRIPT_NEXT',
     '--language_out=ES5_STRICT',
     '--extra_annotation_name',
     'suppressReceiverCheck',