Minor perf tweaks

lib/makePromise.js

@@ -241,7 +241,7 @@ define(function() {
 		InternalPromise.prototype = Object.create(Promise.prototype);
 
 		/**
-		 * Create an appropriate handler for x
+		 * Get an appropriate handler for x
 		 * @param {*} x
 		 * @param {object?} h optional handler to check for cycles
 		 * @returns {object} handler
@@ -368,14 +368,11 @@ define(function() {
 
 			this.resolved = true;
 			this.handler = handler;
+			tasks.enqueue(this);
 
 			if(this._isMonitored()) {
 				this.trace = handler._addTrace(this.trace);
 			}
-
-			if(this.consumers.length > 0) {
-				tasks.enqueue(this);
-			}
 		};
 
 		DeferredHandler.prototype.when = function(resolve, notify, t, receiver, f, r, u) {

when.js

@@ -74,7 +74,8 @@ define(function (require) {
 	 *   callback and/or errback is not supplied.
 	 */
 	function when(x, onFulfilled, onRejected, onProgress) {
-		return resolve(x).then(onFulfilled, onRejected, onProgress);
+		var p = resolve(x);
+		return arguments.length < 2 ? p : p.then(onFulfilled, onRejected, onProgress);
 	}
 
 	/**