### Description

The date_xxx() arguments have been swapped to always have the field parameter last. This has been done to align with other implementations of similar functionality (which users would be accustomed to).
This issue is a reminder to remove this warning once any existing usages have been corrected.

Related: #98624, #99561.
x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/analysis/AnalyzerTests.java
}
    public void testDateFormatWithDateFormat() {
        verifyUnsupported("""
            from test
            | eval date_format(date, date)
            """, "first argument of [date_format(date, date)] must be [string], found value [date] type [datetime]");
    }
    public void testDateParseOnInt() {
        verifyUnsupported("""
            from test
            | eval date_parse(keyword, int)
            """, "second argument of [date_parse(keyword, int)] must be [string], found value [int] type [integer]");
    }
    public void testDateParseOnDate() {
        verifyUnsupported("""
            from test
            | eval date_parse(keyword, date)
            """, "second argument of [date_parse(keyword, date)] must be [string], found value [date] type [datetime]");
    }
    public void testDateParseOnIntPattern() {
        verifyUnsupported("""
            from test
            | eval date_parse(int, keyword)
            """, "first argument of [date_parse(int, keyword)] must be [string], found value [int] type [integer]");
    }
    public void testDateTruncOnInt() {
        verifyUnsupported("""
            from test
            | eval date_trunc("1M", int)
            """, "first argument of [date_trunc(\"1M\", int)] must be [datetime], found value [int] type [integer]");