The {indirect_function_table_size} field of the instance was initialized
with the size of the first anyfunc table. However, this field should
only be set if Table 0 is of type anyfunc.

R=clemensh@chromium.org

Bug: chromium:977101
Change-Id: I4729feb6b67387ccda53d17179a34d719347efed
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1669697Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62314}