This adapts the general purpose inlining heuristic to not inline within
or across the boundary of asm.js code. Note that this only affects the
heuristics, from a functional point of view it is still supported.

R=bmeurer@chromium.org
BUG=chromium:549000
LOG=n

Review URL: https://codereview.chromium.org/1418823005

Cr-Commit-Position: refs/heads/master@{#31654}