port 5d875a57 (r30342).

original commit message:

    The previous hack with HInstanceOfKnownGlobal was not only slower,
    but also very brittle and required a lot of weird hacks to support it. And
    what's even more important it wasn't even correct (because a map check
    on the lhs is never enough for instanceof).

    The new implementation provides a sane runtime implementation
    for InstanceOf plus a fast case in the InstanceOfStub, combined with
    a proper specialization in the case of a known global in CrankShaft,
    which does only the prototype chain walk (coupled with a code
    dependency on the known global).

    As a drive-by-fix: Also fix the incorrect Object.prototype.isPrototypeOf
    implementation.

R=weiliang.lin@intel.com
BUG=

Review URL: https://codereview.chromium.org/1318663003

Cr-Commit-Position: refs/heads/master@{#30376}