ESQL: Move more test type error testing (#119945) (#120324)

This reduces the number of test cases in ESQL a little more ala #119678.
It migrates a few random tests and all of the multivalue functions:
```
92775 -> 43760
 3m45 -> 4m04
```

This adds a few more error test cases that were missing to make sure it all
lines up well. And it fixes a few error messages in a few functions. That's
*likely* where the extra time goes.

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/scalar/multivalue/MvAppend.java

@@ -55,13 +55,15 @@ public class MvAppend extends EsqlScalarFunction implements EvaluatorMapper {
             "cartesian_point",
             "cartesian_shape",
             "date",
+            "date_nanos",
             "double",
             "geo_point",
             "geo_shape",
             "integer",
             "ip",
             "keyword",
             "long",
+            "unsigned_long",
             "version" },
         description = "Concatenates values of two multi-value fields."
     )
@@ -74,6 +76,7 @@ public MvAppend(
                 "cartesian_point",
                 "cartesian_shape",
                 "date",
+                "date_nanos",
                 "double",
                 "geo_point",
                 "geo_shape",
@@ -82,6 +85,7 @@ public MvAppend(
                 "keyword",
                 "long",
                 "text",
+                "unsigned_long",
                 "version" }
         ) Expression field1,
         @Param(
@@ -91,6 +95,7 @@ public MvAppend(
                 "cartesian_point",
                 "cartesian_shape",
                 "date",
+                "date_nanos",
                 "double",
                 "geo_point",
                 "geo_shape",
@@ -99,6 +104,7 @@ public MvAppend(
                 "keyword",
                 "long",
                 "text",
+                "unsigned_long",
                 "version" }
         ) Expression field2
     ) {

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/scalar/multivalue/MvDedupe.java

@@ -46,6 +46,7 @@ public class MvDedupe extends AbstractMultivalueFunction {
             "ip",
             "keyword",
             "long",
+            "unsigned_long",
             "version" },
         description = "Remove duplicate values from a multivalued field.",
         note = "`MV_DEDUPE` may, but won't always, sort the values in the column.",
@@ -69,6 +70,7 @@ public MvDedupe(
                 "keyword",
                 "long",
                 "text",
+                "unsigned_long",
                 "version" },
             description = "Multivalue expression."
         ) Expression field

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/scalar/multivalue/MvSlice.java

@@ -67,6 +67,7 @@ public class MvSlice extends EsqlScalarFunction implements OptionalArgument, Eva
             "ip",
             "keyword",
             "long",
+            "unsigned_long",
             "version" },
         description = """
             Returns a subset of the multivalued field using the start and end index values.
@@ -96,6 +97,7 @@ public MvSlice(
                 "keyword",
                 "long",
                 "text",
+                "unsigned_long",
                 "version" },
             description = "Multivalue expression. If `null`, the function returns `null`."
         ) Expression field,

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/AbstractFunctionTestCase.java

@@ -384,7 +384,9 @@ protected static TestCaseSupplier typeErrorSupplier(
 
     /**
      * Build a test case that asserts that the combination of parameter types is an error.
+     * @deprecated use an extension of {@link ErrorsForCasesWithoutExamplesTestCase}
      */
+    @Deprecated
     protected static TestCaseSupplier typeErrorSupplier(
         boolean includeOrdinal,
         List<Set<DataType>> validPerPosition,
@@ -643,11 +645,17 @@ protected static void buildLayout(Layout.Builder builder, Expression e) {
     protected Object toJavaObjectUnsignedLongAware(Block block, int position) {
         Object result;
         result = toJavaObject(block, position);
-        if (result != null && testCase.expectedType() == DataType.UNSIGNED_LONG) {
-            assertThat(result, instanceOf(Long.class));
-            result = NumericUtils.unsignedLongAsBigInteger((Long) result);
+        if (result == null || testCase.expectedType() != DataType.UNSIGNED_LONG) {
+            return result;
         }
-        return result;
+        if (result instanceof List<?> l) {
+            return l.stream().map(v -> {
+                assertThat(v, instanceOf(Long.class));
+                return NumericUtils.unsignedLongAsBigInteger((Long) v);
+            }).toList();
+        }
+        assertThat(result, instanceOf(Long.class));
+        return NumericUtils.unsignedLongAsBigInteger((Long) result);
     }
 
     /**

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/AbstractScalarFunctionTestCase.java

@@ -372,7 +372,11 @@ public void testFold() {
             Object result = nullOptimized.fold(FoldContext.small());
             // Decode unsigned longs into BigIntegers
             if (testCase.expectedType() == DataType.UNSIGNED_LONG && result != null) {
-                result = NumericUtils.unsignedLongAsBigInteger((Long) result);
+                if (result instanceof List<?> l) {
+                    result = l.stream().map(v -> NumericUtils.unsignedLongAsBigInteger((Long) v)).toList();
+                } else {
+                    result = NumericUtils.unsignedLongAsBigInteger((Long) result);
+                }
             }
             assertThat(result, testCase.getMatcher());
             if (testCase.getExpectedBuildEvaluatorWarnings() != null) {