show symchoices as ambiguous in overload type mismatches #27136

Job	Run time
ubuntu-20.04 (batch: allowed_failures)	7m 49s
ubuntu-20.04 (batch: 0_3)	20m 39s
ubuntu-20.04 (batch: 1_3)	26m 42s
ubuntu-20.04 (batch: 2_3)	22m 1s
macos-12 (batch: allowed_failures)	9m 36s
macos-12 (batch: 0_3)	28m 10s
macos-12 (batch: 1_3)	30m 24s
macos-12 (batch: 2_3)	28m 24s
	2h 53m 45s

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