VM doesn't recognize new function type as type parameter.

[lrhn]

Example code:

int Function() x = () => 42;
int Function(int Function()) y = (int Function() x) => x();
List<int Function()> l = <int Function()>[()=>42, x];  // Error
main() {
  print(y(l[1]));
}

causes the error message:

'functype.dart': error: line 4 pos 1: unexpected token 'List'
List<int Function()> l = <int Function()>[()=>42, x];
^

Removing the <int Function()> on line 4 makes the code work. This runs in dart2js, but also crashes the analyzer.

[crelier]

I just looked at this and it is a bug (even 2 separate bugs!) in the look-ahead parsing code in the VM, which does not recognize the line as a variable declaration.
I'll fix it tomorrow.

[crelier]

I fixed this issue, but I cannot upload the cl including the regression test, because dartfmt is not able to parse it :-)

I'll file a separate bug.

[crelier]

I filed dart-lang/dart_style#616

[crelier]

I also filed #29335