Cannot map parametric function

[grebe]

Mapping a parametric function doesn't work, e.g.

fn f<N:u32>(x: u32) -> u32 { N + x }
fn main() { map(u32[4]:[0, 1, 2, 3], f<u32:4>) }

[proppy]

Note this fails with the following error:

0002: 
0003: fn f<N:u32>(x: u32) -> u32 { N + x }
0004: fn main() { map(u32[4]:[0, 1, 2, 3], f<u32:4>) }
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ ParseError: Expected '(', got ')': Expected a '(' after parametrics for function invocation.