https://issues.dlang.org/show_bug.cgi?id=13396

          Issue ID: 13396
           Summary: Non-instance and final methods on extern(C++)
                    interfaces shouldn't be mangled as C++ names
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: regression
          Priority: P1
         Component: DMD
          Assignee: nobody@puremagic.com
          Reporter: blah38621@gmail.com

A while back, some changes were made to the C++ mangling, those changes broke the build on an old project of mine which declared the following:

extern(C++) public interface ScriptObject // Total size: 0x3C
{
public:
    final static T Find(T)(string name) { return T.init; }
}

and, in another file, it does:

ScriptObject.Find!SomeObjectType("SomeObjectType");

This instantiates the template, and the current DMD tries to mangle Find as a C++ function, which obviously fails, because string isn't something you can mangle for C++.

I believe that methods with implementations in extern(C++) interfaces should still be using the D calling convention and mangling scheme.

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