[perl #60292] [BUG][MMD] wrong dispatch with LuaString & is_equal

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# New Ticket Created by  François PERRAD 
# Please include the string:  [perl #60292]
# in the subject line of all future correspondence about this issue. 
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=60292 >


Since r32189, the following code gives a wrong result :

.HLL 'Lua', 'lua_group'
.sub 'main'
    new $P1, 'LuaString'
    set $P1, 'str'
    new $P2, 'LuaString'
    set $P2, 'str'
    $I0 = iseq $P1, $P2
    say $I0
.end

The methods MULTI is_equal in languages/lua/pmc/luastring.pmc are not called.

François.