[Issue 8366] New: Overriding const member function in conjunction with mutable overload causes a strange error

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=8366

           Summary: Overriding const member function in conjunction with
                    mutable overload causes a strange error
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: blocker
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: k.hara.pg at gmail.com


--- Comment #0 from Kenji Hara <k.hara.pg at gmail.com> 2012-07-09 21:26:12 PDT ---
I think this problem blocks 2.060 release.

code:
----
class C {
    // overrides Object.opEquals
    bool opEquals(const Object o) const {}

    // introduce mutable overload
    bool opEquals(const Object o) {}  // line8
}
void main(){}

output:
----
test.d(8): Error: function test.C.opEquals multiple overrides of same function

The second opEquals should *introduce* new member function. But, by the const
attribute inference, it is determined as *multiple overrides".

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