Updates for ES2016 Draft 2015-12-01

- RegExp.prototype[Symbol.split] calls ToUint32 (https://github.com/tc39/ecma262/issues/92)
- Species lookup removed from Promise.all and Promise.race (https://github.com/tc39/ecma262/issues/151)
- Generator functions are no longer constructors (https://github.com/tc39/ecma262/pull/171)

Fixes #444

test/built-ins/GeneratorPrototype/next/context-constructor-invocation.js

-// Copyright (C) 2013 the V8 project authors. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-/*---
-es6id: 25.2
-description: >
-    If the generator was invoked using [[Construct]], the this bind is not
-    initialized and any references to `this` within the FunctionBody will
-    produce a ReferenceError exception.
----*/
-
-function* g() { this; }
-var iter = new g();
-
-assert.throws(ReferenceError, function() {
-  iter.next();
-});

test/built-ins/Promise/all/species-get-error.js

@@ -3,23 +3,23 @@
 
 /*---
 description: >
-    Error thrown when retrieving `Symbol.species` property of the `this` value
+    Promise.all() does not retrieve `Symbol.species` property of the `this` value
 es6id: 25.4.4.1
 info: >
     1. Let C be the this value.
     2. If Type(C) is not Object, throw a TypeError exception.
-    3. Let S be Get(C, @@species).
-    4. ReturnIfAbrupt(S).
+    3. Let promiseCapability be ? NewPromiseCapability(C).
+    ...
 features: [Symbol.species]
 ---*/
 
-var C = {};
+function C(executor) {
+  executor(function(){}, function(){});
+}
 Object.defineProperty(C, Symbol.species, {
   get: function() {
-    throw new Test262Error();
+    $ERROR("Getter for Symbol.species called");
   }
 });
 
-assert.throws(Test262Error, function() {
-  Promise.all.call(C);
-});
+Promise.all.call(C, []);

test/built-ins/Promise/race/species-get-error.js

@@ -3,23 +3,23 @@
 
 /*---
 description: >
-    Error thrown when retrieving `Symbol.species` property of the `this` value
+    Promise.race() does not retrieve `Symbol.species` property of the `this` value
 es6id: 25.4.4.3
 info: >
     1. Let C be the this value.
     2. If Type(C) is not Object, throw a TypeError exception.
-    3. Let S be Get(C, @@species).
-    4. ReturnIfAbrupt(S).
+    3. Let promiseCapability be ? NewPromiseCapability(C).
+    ...
 features: [Symbol.species]
 ---*/
 
-var C = {};
+function C(executor) {
+  executor(function(){}, function(){});
+}
 Object.defineProperty(C, Symbol.species, {
   get: function() {
-    throw new Test262Error();
+    $ERROR("Getter for Symbol.species called");
   }
 });
 
-assert.throws(Test262Error, function() {
-  Promise.race.call(C);
-});
+Promise.race.call(C, []);

test/built-ins/RegExp/prototype/Symbol.split/coerce-limit.js

@@ -6,17 +6,17 @@ es6id: 21.2.5.11
 description: Length coercion of `limit` argument
 info: >
     [...]
-    17. If limit is undefined, let lim be 253–1; else let lim be
-        ToLength(limit).
+    17. If limit is undefined, let lim be 2^32-1; else let lim be ? ToUint32(limit).
     [...]
 features: [Symbol.split]
 ---*/
 
 var result;
 
+// ToUint32(-23) = 4294967273
 result = /./[Symbol.split]('abc', -23);
 assert(Array.isArray(result));
-assert.sameValue(result.length, 0);
+assert.sameValue(result.length, 4);
 
 result = /./[Symbol.split]('abc', 1.9);
 assert(Array.isArray(result));

test/language/expressions/generators/has-instance.js

@@ -10,4 +10,3 @@ es6id: 25.3
 var g = function*() {};
 
 assert(g() instanceof g, 'Instance created via function invocation');
-assert(new g() instanceof g, 'Instance created via constructor invocation');

test/language/expressions/generators/invoke-as-constructor.js

+// Copyright (C) 2015 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: >
+    Generator expressions cannot be used as constructors.
+es6id: 14.4
+---*/
+
+var g = function*(){};
+
+assert.throws(TypeError, function() {
+  var instance = new g();
+});

test/language/expressions/generators/prototype-value.js

@@ -16,8 +16,3 @@ assert.sameValue(
   g.prototype,
   'Instance created via function invocation'
 );
-assert.sameValue(
-  Object.getPrototypeOf(new g()),
-  g.prototype,
-  'Instance created via constructor invocation'
-);

test/language/expressions/object/method-definition/generator-invoke-ctor.js

@@ -3,13 +3,13 @@
 
 /*---
 description: >
-    Generator functions declared as methods may be used as constructors.
+    Generator functions declared as methods cannot be used as constructors.
 es6id: 14.4.13
 features: [generators]
 ---*/
 
 var method = { *method() {} }.method;
 
-var instance = new method();
-
-assert.sameValue(instance instanceof method, true);
+assert.throws(TypeError, function() {
+  var instance = new method();
+});

test/language/statements/generators/has-instance.js

@@ -10,4 +10,3 @@ es6id: 25.3
 function* g() {}
 
 assert(g() instanceof g, 'Instance created via function invocation');
-assert(new g() instanceof g, 'Instance created via constructor invocation');

test/language/statements/generators/invoke-as-constructor.js

+// Copyright (C) 2015 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: >
+    Generator statements cannot be used as constructors.
+es6id: 14.4
+---*/
+
+function* g(){}
+
+assert.throws(TypeError, function() {
+  var instance = new g();
+});

test/language/statements/generators/prototype-value.js

@@ -16,8 +16,3 @@ assert.sameValue(
   g.prototype,
   'Instance created via function invocation'
 );
-assert.sameValue(
-  Object.getPrototypeOf(new g()),
-  g.prototype,
-  'Instance created via constructor invocation'
-);