emit * in generators downlevel

tests/baselines/reference/YieldExpression10_es6.js

@@ -6,7 +6,7 @@ var v = { * foo() {
 
 
 //// [YieldExpression10_es6.js]
-var v = { foo: function () {
+var v = { foo: function* () {
         yield (foo);
     }
 };

tests/baselines/reference/YieldExpression11_es6.js

@@ -9,7 +9,7 @@ class C {
 var C = (function () {
     function C() {
     }
-    C.prototype.foo = function () {
+    C.prototype.foo = function* () {
         yield (foo);
     };
     return C;

tests/baselines/reference/YieldExpression13_es6.js

@@ -2,4 +2,4 @@
 function* foo() { yield }
 
 //// [YieldExpression13_es6.js]
-function foo() { yield; }
+function* foo() { yield; }

tests/baselines/reference/YieldExpression16_es6.js

@@ -6,7 +6,7 @@ function* foo() {
 }
 
 //// [YieldExpression16_es6.js]
-function foo() {
+function* foo() {
     function bar() {
         yield foo;
     }

tests/baselines/reference/YieldExpression19_es6.js

@@ -8,9 +8,9 @@ function*foo() {
 }
 
 //// [YieldExpression19_es6.js]
-function foo() {
+function* foo() {
     function bar() {
-        function quux() {
+        function* quux() {
             yield (foo);
         }
     }

tests/baselines/reference/yieldExpression1.js

@@ -4,6 +4,6 @@ function* foo() {
 }
 
 //// [yieldExpression1.js]
-function foo() {
+function* foo() {
     yield;
 }