Fix Set range iterator implementation

core/templates/set.h

@@ -71,6 +71,9 @@ public:
 		Element *prev() {
 			return _prev;
 		}
+		T &get() {
+			return value;
+		}
 		const T &get() const {
 			return value;
 		};
@@ -118,8 +121,8 @@ public:
 			return *this;
 		}
 
-		_FORCE_INLINE_ bool operator==(const Iterator &b) const { return E == b.E; }
-		_FORCE_INLINE_ bool operator!=(const Iterator &b) const { return E != b.E; }
+		_FORCE_INLINE_ bool operator==(const ConstIterator &b) const { return E == b.E; }
+		_FORCE_INLINE_ bool operator!=(const ConstIterator &b) const { return E != b.E; }
 
 		_FORCE_INLINE_ ConstIterator(const Element *p_E) { E = p_E; }
 		_FORCE_INLINE_ ConstIterator() {}