The above intrinsic by now has to perform a check whether the prototype
of a derived constructor is actually a constructor function itself. This
is done as part of the {JSGetConstructorCall} operator. The intrinsic
should just reduce down to the operator to maintain correct semantics.

R=bmeurer@chromium.org
TEST=mjsunit/regress/regress-crbug-696622
BUG=chromium:696622

Change-Id: Ia19c188f17ad16b12248db1f01a01b8d7258499b
Reviewed-on: https://chromium-review.googlesource.com/447716Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43479}