Can't take address of generic function instantiation

[ntrel]

V version: recent git
OS: Windows 8

What did you do?

fn g<T>() {
	println(sizeof(T))
}

fn f<T>() {
	p := &g<T>
	p()
}

f<int>()
f<string>()

What did you expect to see?
Successful compilation.

What did you see instead?

sizeofT.v:7:2: error: unexpected name `p`, expecting `(`
    5 | fn f<T>() {
    6 |     p := &g<T>
    7 |     p()
      |     ^
    8 | }
    9 |

[ntrel]

This would be useful for #6991

[ntrel]

Started work on this:
https://github.com/ntrel/V/commits/gen-fn-ptr

[ArtemkaKun]

Updated code

fn g[T]() {
	println(sizeof(T))
}

fn f[T]() {
	p := &g[T]()
	p[T]()
}

f[int]()
f[string]()

Current error

code.v:6:7: error: cannot take the address of g()
    4 | 
    5 | fn f[T]() {
    6 |     p := &g[T]()
      |          ^
    7 |     p[T]()
    8 | }
code.v:7:2: error: unknown function: p
    5 | fn f[T]() {
    6 |     p := &g[T]()
    7 |     p[T]()
      |     ~~~~~~
    8 | }
    9 |