TEST=mjsunit/es6/math-fround,mjsunit/unicodelctest

Change-Id: I0558772bcb72122c8b58a71ec20f6894b3468d60
Reviewed-on: https://chromium-review.googlesource.com/1064119Reviewed-by: Miran Karić <miran.karic@mips.com>
Commit-Queue: Sreten Kovacevic <sreten.kovacevic@mips.com>
Cr-Commit-Position: refs/heads/master@{#53242}