Allow REGEXP modifier in HQL LIKE predicates.

Hibernate's HQL parser accepts `LIKE REGEXP` and `ILIKE REGEXP` predicates. Align Spring Data JPA's HQL grammar with that syntax and cover the round-trip rendering path.

Signed-off-by: jewoodev <jewoos15@naver.com>
Closes #4295

Author: jewoodev

spring-data-jpa/src/main/antlr4/org/springframework/data/jpa/repository/query/Hql.g4

@@ -1487,7 +1487,7 @@ betweenExpression
 
 // https://docs.jboss.org/hibernate/orm/6.1/userguide/html_single/Hibernate_User_Guide.html#hql-like-predicate
 stringPatternMatching
-    : expression NOT? (LIKE | ILIKE) expression (ESCAPE (STRING_LITERAL | JAVA_STRING_LITERAL |parameter))?
+    : expression NOT? (LIKE | ILIKE) REGEXP? expression (ESCAPE (STRING_LITERAL | JAVA_STRING_LITERAL |parameter))?
     ;
 
 // https://docs.jboss.org/hibernate/orm/6.1/userguide/html_single/Hibernate_User_Guide.html#hql-elements-indices
@@ -1707,6 +1707,7 @@ nakedIdentifier
     | PRECEDING
     | QUARTER
     | RANGE
+    | REGEXP
     | RESPECT
     | RETURNING
     | RIGHT
@@ -1968,6 +1969,7 @@ POSITION                    : P O S I T I O N;
 PRECEDING                   : P R E C E D I N G;
 QUARTER                     : Q U A R T E R;
 RANGE                       : R A N G E;
+REGEXP                      : R E G E X P;
 RESPECT                     : R E S P E C T;
 RETURNING                   : R E T U R N I N G;
 RIGHT                       : R I G H T;

spring-data-jpa/src/test/java/org/springframework/data/jpa/repository/query/HqlQueryRendererTests.java

@@ -373,6 +373,14 @@ void position() {
 				"from Call c ");
 	}
 
+	@Test
+	void likeRegexpPredicate() {
+
+		assertQuery("select p from Person p where p.name like regexp 'Jo.*'");
+		assertQuery("select p from Person p where p.name not like regexp 'Jo.*'");
+		assertQuery("select p from Person p where p.name ilike regexp 'jo.*'");
+	}
+
 	@Test // GH-3689
 	void currentDateFunctions() {