can inherit a C++ class from Object

[dlangBugzillaToGithub]

Nicholas Wilson (@thewilsonator) reported this on 2018-11-02T01:06:14Z

Transferred from https://issues.dlang.org/show_bug.cgi?id=19347

Description

extern(C++) class A : Object {}


void main()
{
    import std.stdio;
    auto a = new A();
    writeln(a.toString()); // Crash
}

Noticed in https://github.com/dlang/druntime/pull/2318#issuecomment-426077283