[SPARK-51241][SQL][TESTS] Add test cases with ignore nulls for ANY_VALUE

### What changes were proposed in this pull request?
This PR proposes to add test cases with ignore nulls for `ANY_VALUE`.

### Why are the changes needed?
According to the discussion at #49981 (comment)

### Does this PR introduce _any_ user-facing change?
'No'.

### How was this patch tested?
GA

### Was this patch authored or co-authored using generative AI tooling?
'No'.

Closes #49990 from beliefer/SPARK-51241_new.

Authored-by: beliefer <beliefer@163.com>
Signed-off-by: Max Gekk <max.gekk@gmail.com>

sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/parser/ExpressionParserSuite.scala

@@ -26,7 +26,7 @@ import org.apache.spark.SparkThrowable
 import org.apache.spark.sql.catalyst.FunctionIdentifier
 import org.apache.spark.sql.catalyst.analysis.{UnresolvedAttribute, _}
 import org.apache.spark.sql.catalyst.expressions._
-import org.apache.spark.sql.catalyst.expressions.aggregate.{First, Last}
+import org.apache.spark.sql.catalyst.expressions.aggregate.{AnyValue, First, Last}
 import org.apache.spark.sql.catalyst.plans.logical.{OneRowRelation, Project}
 import org.apache.spark.sql.catalyst.util.{DateTimeTestUtils, IntervalUtils}
 import org.apache.spark.sql.catalyst.util.DateTimeConstants._
@@ -1150,13 +1150,18 @@ class ExpressionParserSuite extends AnalysisTest {
     assertEqual(complexName2.quotedString, UnresolvedAttribute(Seq("fo``o", "ba``r")))
   }
 
-  test("SPARK-19526 Support ignore nulls keywords for first and last") {
+  test("SPARK-19526: Support ignore nulls keywords for first and last") {
     assertEqual("first(a ignore nulls)", First($"a", true).toAggregateExpression())
     assertEqual("first(a)", First($"a", false).toAggregateExpression())
     assertEqual("last(a ignore nulls)", Last($"a", true).toAggregateExpression())
     assertEqual("last(a)", Last($"a", false).toAggregateExpression())
   }
 
+  test("SPARK-51241: Add test cases with ignore nulls for ANY_VALUE") {
+    assertEqual("any_value(a ignore nulls)", AnyValue($"a", true).toAggregateExpression())
+    assertEqual("any_value(a)", AnyValue($"a", false).toAggregateExpression())
+  }
+
   test("timestamp literals") {
     DateTimeTestUtils.outstandingZoneIds.foreach { zid =>
       withSQLConf(SQLConf.SESSION_LOCAL_TIMEZONE.key -> zid.getId) {