[two.js] Update 'Object' type and 'distanceToSquared' method typo (#35914)

* Update index.d.ts

* Update index.d.ts

* Update two.js-tests.ts

* Update two.js-tests.ts

* Update two.js-tests.ts

* Update two.js-tests.ts

types/two.js/index.d.ts

@@ -1,6 +1,7 @@
 // Type definitions for js 0.7
 // Project: https://two.js.org
 // Definitions by: Carlos Precioso <https://github.com/cprecioso>
+//                 Konstantin <https://github.com/demkonst>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.2
 
@@ -273,7 +274,7 @@ declare namespace Two {
             number
         > {}
 
-    type Object = Path | Group;
+    type Object = Path | Group | Text;
 
     class Vector {
         constructor(x: number, y: number);
@@ -298,7 +299,7 @@ declare namespace Two {
         length(): number;
         normalize(): this;
         distanceTo(v: Vector): number;
-        distanceSquared(v: Vector): number;
+        distanceToSquared(v: Vector): number;
         setLength(length: number): this;
         equals(v: Vector): boolean;
         lerp(v: Vector, t: number): this;

types/two.js/two.js-tests.ts

@@ -75,3 +75,15 @@ import Two = require("two.js");
         group.rotation += t * 4 * Math.PI;
     }).play(); // Finally, start the animation loop
 }
+
+{
+    const two = new Two({ width: 300, height: 500 });
+    const text = new Two.Text('text test', 10, 10);
+    two.add(text);
+}
+
+{
+    const v = new Two.Vector(0, 0);
+    const dist = v.distanceToSquared(new Two.Vector(100, 200));
+    v.x = dist;
+}