Evaluation of `when` more lazily evaluates multiple conditions on one line.

DeepCover's test suite of semi-crazy corner cases found a regression in JRuby...

```
temp = [Symbol]; case :hello; when *temp, (p 'hola' || Integer); end
```

Should not print anything as the first condition is a match...

```
jruby 9.3.0.0-SNAPSHOT (2.6.5) 2020-04-13 d33953990e Java HotSpot(TM) 64-Bit Server VM 25.102-b14 on 1.8.0_102-b14 +jit [darwin-x86_64]
```