[GR-53439] Report megamorphic on LookupMethodNode node #1668

Job	Run time
build native	16m 25s
build jvm	9m 42s
ruby/spec on CRuby 3.0	3m 20s
lint	17m 30s
ruby/spec on CRuby 3.1	3m 44s
ruby/spec on CRuby 3.2	2m 58s
fast specs	2m 17s
test integration	9m 47s
specs :truffle	9m 45s
specs :language :core	13m 12s
specs :library :cext :security :command_line :tracepoint	9m 33s
test native	3m 11s
run MRI tests on native	15m 8s
	1h 56m 32s

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