improved code completion for class \CakeDC\Money\Money #28

Job	Run time
Coding Standard & Static Analysis	25s
testsuite (7.4, sqlite)	11s
testsuite (7.4, mysql)	24s
testsuite (7.4, pgsql)	17s
testsuite (8.0, sqlite)	16s
testsuite (8.0, mysql)	22s
testsuite (8.0, pgsql)	23s
testsuite (8.1, sqlite)	11s
testsuite (8.1, mysql)	27s
testsuite (8.1, pgsql)	22s
testsuite (8.2, sqlite)	14s
testsuite (8.2, mysql)	24s
testsuite (8.2, pgsql)	26s
testsuite (8.3, sqlite)	16s
testsuite (8.3, mysql)	28s
testsuite (8.3, pgsql)	22s
	5m 28s

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