https://issues.dlang.org/show_bug.cgi?id=19506

          Issue ID: 19506
           Summary: mixin template should be able to inject code as well
                    as symbols
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: iamthewilsonator@hotmail.com

Works
---
mixin template foo(bool b)
{
    int _impl() { writeln(b); return int.init; }
    int _ipml2 = _impl();
}
void main()
{
  mixin foo;
}
---
doesn't
---
mixin template foo(bool b)
{
        writeln(b);
}

void main()
{
  mixin foo;
}
---

see https://forum.dlang.org/post/txcblywfkrhpxnsbfydk@forum.dlang.org for the discovery of this idiom

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