Fix JS tag fuzzing: throw the same in JS and the binaryen interpreter

[kripken]

We do not compare exceptions in binaryen (not in the optimizer, where we
assume we can reorder traps, and not in the fuzzer, where we assume VMs
may have different text for them). But, since we have try-catch in wasm,
we can actually end up comparing them, by catching the exception and
logging the output. For that reason, we need to throw exactly the same
JS exception in #7283, which this fixes.

(I fuzzed #7283 for a few hours, and it found this error right after I landed the PR 😄 )

[aheejin]

Where do we compare and check whether those values are the same?

[kripken]

The fuzzer may end up comparing them when it compares the output of VMs. It can run in d8 and binaryen, get the logs, and diff those. And if we return the caught exceptions, their contents are in those logs (like any return value).