GitLab

This patch allows summations like "a + b + c" to be serialized as is
without inserting redundant parentheses like "(a + b) + c" that the
current implementation does.

This doesn't fix all the serialization issues, but at least we are one
step closer.

Bug: 1008146
Change-Id: I87350fe6fb43710974cfefb21d8d136258115c9d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1825732Reviewed-by: Emil A Eklund <eae@chromium.org>
Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Commit-Queue: Xiaocheng Hu <xiaochengh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#700253}