Migrate Math.hypot() from JS to C++ builtins. Use normalization and
Kahan summation to avoid overflow and rounding errors.

R=bmeurer@chromium.org
BUG=v8:5165, v8:5086
LOG=n

Review-Url: https://codereview.chromium.org/2102223005
Cr-Commit-Position: refs/heads/master@{#37473}