Idea: Context sensitive attribute functions.

[Dennis]

On Tuesday, 19 June 2018 at 21:06:16 UTC, Dennis wrote:
> On Tuesday, 19 June 2018 at 19:03:44 UTC, 12345swordy wrote:
>> Why not use them if given the opportunity based on its context?
>
> You can do that if you want

Although it doesn't seem to work in attribute interference of 
templates.

```
void main() @nogc {
     example();
}

void example()() {
     int a = 8;
     static if (__traits(compiles, new int(0))) {
         writefln("writeln %d", a);
     } else {
         printf("printf %d", a);
     }
}
```

onlineapp.d(5): Error: @nogc function D main cannot call 
non- at nogc function onlineapp.example!().example

Maybe there's some workaround?