[perl #114210] Prefix op parsing takes precedence over subroutine parsing, should not

[Christian Bartolomaeus via RT]

This works now:

$ perl6 -e 'say not(0) + 1'
2

$ perl6 -e 'say (not 0) + 1'
2

The test was unfudged with commit 
https://github.com/perl6/roast/commit/0f47ac7711

I'm closing this ticket as 'resolved'.