[Issue 19200] New: Variant operators don't overload correctly

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19200

          Issue ID: 19200
           Summary: Variant operators don't overload correctly
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Severity: normal
          Priority: P1
         Component: phobos
          Assignee: nobody at puremagic.com
          Reporter: simen.kjaras at gmail.com

There are issues when using Variant with types that have their own overloaded
operators:

struct S {
    static int opBinaryRight(string op : "|", T)(T rhs) {
        return 3;
    }
}

unittest {
    import std.variant;
    S s;
    Variant v;
    auto b = v | s;
}

std\variant.d(1004): Error: no property min for type S

In addition, Variant's operator overloads are of the old kind (opAdd, opMul,
and so on). These should be updated anyway.

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