Replace ReferentialAction enum in DROP statements (#1648)

tests/sqlparser_common.rs

@@ -11760,12 +11760,12 @@ fn test_drop_policy() {
             if_exists,
             name,
             table_name,
-            option,
+            drop_behavior,
         } => {
             assert_eq!(if_exists, true);
             assert_eq!(name.to_string(), "my_policy");
             assert_eq!(table_name.to_string(), "my_table");
-            assert_eq!(option, Some(ReferentialAction::Restrict));
+            assert_eq!(drop_behavior, Some(DropBehavior::Restrict));
         }
         _ => unreachable!(),
     }

tests/sqlparser_postgres.rs

@@ -3805,7 +3805,7 @@ fn parse_drop_function() {
                 }]),
                 args: None
             }],
-            option: None
+            drop_behavior: None
         }
     );
 
@@ -3830,7 +3830,7 @@ fn parse_drop_function() {
                     }
                 ]),
             }],
-            option: None
+            drop_behavior: None
         }
     );
 
@@ -3879,7 +3879,7 @@ fn parse_drop_function() {
                     ]),
                 }
             ],
-            option: None
+            drop_behavior: None
         }
     );
 }
@@ -3899,7 +3899,7 @@ fn parse_drop_procedure() {
                 }]),
                 args: None
             }],
-            option: None
+            drop_behavior: None
         }
     );
 
@@ -3924,7 +3924,7 @@ fn parse_drop_procedure() {
                     }
                 ]),
             }],
-            option: None
+            drop_behavior: None
         }
     );
 
@@ -3973,7 +3973,7 @@ fn parse_drop_procedure() {
                     ]),
                 }
             ],
-            option: None
+            drop_behavior: None
         }
     );