Fix vanilla tests with domain creation (#8238)

Qualify create domain stmt after local execution, to avoid such diffs in
PG vanilla tests:

```diff
create domain d_fail as anyelement;
-ERROR:  "anyelement" is not a valid base type for a domain
+ERROR:  "pg_catalog.anyelement" is not a valid base type for a domain
```

These tests were newly added in PG18, however this is not new PG18
behavior, just some added tests.
https://github.com/postgres/postgres/commit/0172b4c94

Fixes #8042

src/backend/distributed/commands/common.c

@@ -19,6 +19,7 @@
 #include "nodes/parsenodes.h"
 #include "tcop/utility.h"
 
+#include "distributed/citus_depended_object.h"
 #include "distributed/commands.h"
 #include "distributed/commands/utility_hook.h"
 #include "distributed/deparser.h"
@@ -63,6 +64,13 @@ PostprocessCreateDistributedObjectFromCatalogStmt(Node *stmt, const char *queryS
 		return NIL;
 	}
 
+	if (ops->qualify && DistOpsValidityState(stmt, ops) ==
+		ShouldQualifyAfterLocalCreation)
+	{
+		/* qualify the statement after local creation */
+		ops->qualify(stmt);
+	}
+
 	List *addresses = GetObjectAddressListFromParseTree(stmt, false, true);
 
 	/*  the code-path only supports a single object */

src/backend/distributed/utils/citus_depended_object.c

@@ -370,6 +370,20 @@ DistOpsValidityState(Node *node, const DistributeObjectOps *ops)
 {
 	if (ops && ops->operationType == DIST_OPS_CREATE)
 	{
+		/*
+		 * We should beware of qualifying the CREATE statement too early.
+		 */
+		if (nodeTag(node) == T_CreateDomainStmt)
+		{
+			/*
+			 * Create Domain statements should be qualified after local creation
+			 * because in case of an error in creation, we don't want to print
+			 * the error with the qualified name, as that would differ with
+			 * vanilla Postgres error output.
+			 */
+			return ShouldQualifyAfterLocalCreation;
+		}
+
 		/*
 		 * We should not validate CREATE statements because no address exists
 		 * here yet.

src/include/distributed/citus_depended_object.h

@@ -25,7 +25,8 @@ typedef enum DistOpsValidationState
 	HasAtLeastOneValidObject,
 	HasNoneValidObject,
 	HasObjectWithInvalidOwnership,
-	NoAddressResolutionRequired
+	NoAddressResolutionRequired,
+	ShouldQualifyAfterLocalCreation
 } DistOpsValidationState;
 
 extern void SetLocalClientMinMessagesIfRunningPGTests(int