[interpreter] Add test for OSR from within generators.

test/mjsunit/ignition/osr-from-generator.js

Index: test/mjsunit/ignition/osr-from-generator.js
diff --git a/test/mjsunit/ignition/osr-from-generator.js b/test/mjsunit/ignition/osr-from-generator.js
new file mode 100644
index 0000000000000000000000000000000000000000..2959fff43df02bc5e85a2fa4df71d49449ef220b
--- /dev/null
+++ b/test/mjsunit/ignition/osr-from-generator.js
@@ -0,0 +1,50 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax
+
+(function TestGeneratorOSRSimple() {
+  function* gen1() {
+    for (var i = 0; i < 3; ++i) {
+      if (i == 1) %OptimizeOsr();
+    }
+    return 23;
+  }
+  var g = gen1();
+  assertEquals({ value:23, done:true }, g.next());
+})();
+
+(function TestGeneratorOSRYield() {
+  function* gen2() {
+    for (var i = 0; i < 3; ++i) {
+      if (i == 1) %OptimizeOsr();
+      yield i;
+    }
+    return 23;
+  }
+  var g = gen2();
+  assertEquals({ value:0, done:false }, g.next());
+  assertEquals({ value:1, done:false }, g.next());
+  assertEquals({ value:2, done:false }, g.next());
+  assertEquals({ value:23, done:true }, g.next());
+})();
+
+(function TestGeneratorOSRNested() {
+  function* gen3() {
+    for (var i = 0; i < 3; ++i) {
+      for (var j = 0; j < 3; ++j) {
+        for (var k = 0; k < 10; ++k) {
+          if (k == 5) %OptimizeOsr();
+        }
+      }
+      yield i;
+    }
+    return 23;
+  }
+  var g = gen3();
+  assertEquals({ value:0, done:false }, g.next());
+  assertEquals({ value:1, done:false }, g.next());
+  assertEquals({ value:2, done:false }, g.next());
+  assertEquals({ value:23, done:true }, g.next());
+})();