20% faster `try`

Following up on #33747, this takes things a step further by pulling out
the method name from the arguments array, letting us skip an allocation
in the case where there are no arguments -- notably, this also no longer
*requires* the splat to be an array, allowing us to benefit from
optimizations in Jruby (and maybe MRI in the future) of skipping the
array allocation entirely.

Benchmark results:

```
Warming up --------------------------------------
                 old   179.987k i/100ms
                 new   199.201k i/100ms
Calculating -------------------------------------
                 old      3.029M (± 1.6%) i/s -     15.299M in   5.052417s
                 new      3.657M (± 1.2%) i/s -     18.326M in   5.012648s

Comparison:
                 new:  3656620.7 i/s
                 old:  3028848.3 i/s - 1.21x  slower
```

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