[perl #60036] [BUG] inplace math fails post-MMD

[James Keenan via RT]

Bug still present as of r36214:

[li11-226:parrot] 526 $ cat y.pir;./parrot y.pir
.sub main :main
$P1 = new 'Integer'
assign $P1, 4
$P1 *= 3
say $P1

$P0 = subclass 'Integer', 'MyInt'
$P1 = new 'MyInt'
assign $P1, 4
$P1 *= 3
say $P1

.end


12
Multiple Dispatch: No suitable candidate found for 'i_multiply_int',
with signature 'PI'
current instr.: 'main' pc 21 (y.pir:9)