Fix assert/crash in HandlePolymorphicCallNamed
Fix assert/crash in HandlePolymorphicCallNamed

R=jkummerow@chromium.org
TEST=Ryan Sturgell's test runs through without crashing

Review URL: https://codereview.chromium.org/20051008

Patch from Daniel Clifford <danno@chromium.org>.

git-svn-id: b158db1e4b4ab85d4c9e510fdef4b1e8c614b15b@15842 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh,UniversalFuture/moosh