Rename Vector2.tangent() to Vector2.orthogonal()

core/math/rect2.h

@@ -272,7 +272,7 @@ struct Rect2 {
 			}
 
 			//check inside
-			Vector2 tg = r.tangent();
+			Vector2 tg = r.orthogonal();
 			float s = tg.dot(center) - tg.dot(a);
 			if (s < 0.0) {
 				side_plus++;

core/math/vector2.h

@@ -134,7 +134,7 @@ struct Vector2 {
 	}
 
 	Vector2 rotated(real_t p_by) const;
-	Vector2 tangent() const {
+	Vector2 orthogonal() const {
 		return Vector2(y, -x);
 	}
 

core/variant/variant_call.cpp

@@ -992,7 +992,7 @@ static void _register_variant_builtin_methods() {
 	bind_method(Vector2, cubic_interpolate, sarray("b", "pre_a", "post_b", "t"), varray());
 	bind_method(Vector2, move_toward, sarray("to", "delta"), varray());
 	bind_method(Vector2, rotated, sarray("phi"), varray());
-	bind_method(Vector2, tangent, sarray(), varray());
+	bind_method(Vector2, orthogonal, sarray(), varray());
 	bind_method(Vector2, floor, sarray(), varray());
 	bind_method(Vector2, ceil, sarray(), varray());
 	bind_method(Vector2, round, sarray(), varray());