[Issue 15784] New: Overload set constructor call should be supported from inside a constructor

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15784

          Issue ID: 15784
           Summary: Overload set constructor call should be supported from
                    inside a constructor
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: k.hara.pg at gmail.com

>From issue 15744 test case:

template AddField(T) {
    T b;
    this(Args...)(T b, auto ref Args args)
    {
       this.b = b;
       //this(args);    // not OK (segfaults, issue 15744)
    }
}

template construcotrs() {
    int a;
    this(int a) {
        this.a = a;
    }
}

struct Bar {

    mixin construcotrs;
    mixin AddField!(string);
}

void main() {
    auto bar1 = Bar(5);          // OK
    auto bar2 = Bar("bar", 15);  // also OK
}

In main, outside of construction functions, the Bar's overload set constructor
(declared in AddField and constructors mixin template) called is accepted.
But from inside the constructor AddField.this(Args...)(T b, auto ref Args
args), a constructor call this(args); cannot work.

it's merely inconsistent behavior, and should be treated as a rejects-valid
bug.

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