HHH-6255 correctly handling quoting fk names

Author: brmeyer

hibernate-core/src/main/java/org/hibernate/dialect/Dialect.java

@@ -2052,7 +2052,7 @@ public String getAddForeignKeyConstraintString(
 		final StringBuilder res = new StringBuilder( 30 );
 
 		res.append( " add constraint " )
-				.append( constraintName )
+				.append( quote( constraintName ) )
 				.append( " foreign key (" )
 				.append( StringHelper.join( ", ", foreignKey ) )
 				.append( ") references " )

hibernate-core/src/main/java/org/hibernate/mapping/ForeignKey.java

@@ -133,7 +133,7 @@ public String sqlDropString(Dialect dialect, String defaultCatalog, String defau
 		if ( dialect.supportsIfExistsBeforeConstraintName() ) {
 			buf.append( "if exists " );
 		}
-		buf.append( getName() );
+		buf.append( dialect.quote( getName() ) );
 		if ( dialect.supportsIfExistsAfterConstraintName() ) {
 			buf.append( " if exists" );
 		}