We made two runtime calls: The first one allocated the exception object
containing a FixedArray of exception values, the second call did the
actual throw. Inbetween the code was filling the values array.
This CL refactors this to only allocate the FixedArray initially, fill
it, and then allocate the actual exception and throw it both from the
second runtime function.
This avoids a WasmGetOwnProperty call to find the values array.

R=thibaudm@chromium.org

Bug: v8:11453
Change-Id: I091aaa5c7bfb2b5579fc92c953adf582e6cc175a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2697359
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72811}