Display unmapped schema names in error messages #17809

Job	Run time
Generate Version Upgrade Tests	4s
Run Version Upgrade Test for 13_6-14_6-target_latest	28m 26s
Run Version Upgrade Test for 13_9-14_6-target_latest	28m 33s
Run Version Upgrade Test for 14_3-14_6-target_latest	28m 34s
Run Version Upgrade Test for source_latest-target_latest	36m 32s
Run Version Upgrade Test for 14_5-14_6-target_latest	30m 28s
Run Version Upgrade Test for 14_6-target_latest	26m 0s
Run Version Upgrade Test for 14_12-target_latest	27m 24s
Run Version Upgrade Test for 14_16-target_latest	27m 41s
Run Version Upgrade Test for 15_2-target_latest	28m 2s
Run Version Upgrade Test for 15_10-target_latest	39m 7s
Run Version Upgrade Test for 16_1-target_latest	34m 7s
Run Version Upgrade Test for 16_2-target_latest	31m 59s
Run Version Upgrade Test for 16_6-target_latest	34m 22s
Run Version Upgrade Test for 13_6-14_16-15_11-target_latest with server-collation - chinese_prc_ci_as	35m 8s
Run Version Upgrade Test for 14_6-target_latest with server-collation - chinese_prc_ci_as	26m 16s
Run Version Upgrade Test for 15_11-target_latest with server-collation - chinese_prc_ci_as	41m 33s
Run Version Upgrade Test for 15_11-target_latest with server-collation - japanese_ci_as	37m 16s
Run Version Upgrade Test for 15_5-15_11-target_latest with server-collation - chinese_prc_ci_as	41m 46s
Run Version Upgrade Test for 15_2-target_latest with server-collation - chinese_prc_ci_as	25m 10s
Run Version Upgrade Test for 16_1-target_latest with server-collation - chinese_prc_ci_as	33m 31s
	10h 41m 59s

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