VR: add missing override keyworks

Address:

gcc/value-range-equiv.h:57:8: warning: 'set_undefined' overrides a member function but is not marked 'override' [-Winconsistent-missing-override]
gcc/value-range-equiv.h:58:8: warning: 'set_varying' overrides a member function but is not marked 'override' [-Winconsistent-missing-override]

gcc/ChangeLog:

	* value-range-equiv.h (class value_range_equiv):

diff --git a/gcc/value-range-equiv.h b/gcc/value-range-equiv.h
index 0a52d1372a1826cbffc1ae8c0fc8f06212926443..ad8c640b15b06d783e0404d7d9204e97666f2bcb 100644 (file)
--- a/gcc/value-range-equiv.h
+++ b/gcc/value-range-equiv.h
@@ -54,8 +54,8 @@ class GTY((user)) value_range_equiv : public value_range
   bool equal_p (const value_range_equiv &, bool ignore_equivs) const;
 
   /* Types of value ranges.  */
-  void set_undefined ();
-  void set_varying (tree);
+  void set_undefined () override;
+  void set_varying (tree) override;
 
   /* Equivalence bitmap methods.  */
   bitmap equiv () const { return m_equiv; }