Added override to all releveant methods in Item (and a few other classes)

Other things:
- Remove inline and virtual for methods that are overrides
- Added a 'final' to some Item classes

1 files changed, 7 insertions, 7 deletions

diff --git a/sql/item_xmlfunc.h b/sql/item_xmlfunc.h
index 366958710a4..e2ffe2fa630 100644
--- a/sql/item_xmlfunc.h
+++ b/sql/item_xmlfunc.h
@@ -117,9 +117,9 @@ public:
   {
     set_maybe_null();
   }
-  bool fix_fields(THD *thd, Item **ref);
-  bool fix_length_and_dec();
-  bool const_item() const
+  bool fix_fields(THD *thd, Item **ref) override;
+  bool fix_length_and_dec() override;
+  bool const_item() const override
   {
     return const_item_cache && (!nodeset_func || nodeset_func->const_item());
   }
@@ -136,8 +136,8 @@ public:
     static LEX_CSTRING name= {STRING_WITH_LEN("extractvalue") };
     return name;
   }
-  String *val_str(String *);
-  Item *get_copy(THD *thd)
+  String *val_str(String *) override;
+  Item *get_copy(THD *thd) override
   { return get_item_copy<Item_func_xml_extractvalue>(thd, this); }
 };
 
@@ -157,8 +157,8 @@ public:
     static LEX_CSTRING name= {STRING_WITH_LEN("updatexml") };
     return name;
   }
-  String *val_str(String *);
-  Item *get_copy(THD *thd)
+  String *val_str(String *) override;
+  Item *get_copy(THD *thd) override
   { return get_item_copy<Item_func_xml_update>(thd, this); }
 };