Fix OSR to ignore phis without merge index in loop entry.

test/mjsunit/compiler/escape-analysis.js

Index: test/mjsunit/compiler/escape-analysis.js
diff --git a/test/mjsunit/compiler/escape-analysis.js b/test/mjsunit/compiler/escape-analysis.js
index f32069c39239b102ca3e1c32692152533ce2abd2..7452e3bd11916d81494f5879f2ab2e3ad78a9e77 100644
--- a/test/mjsunit/compiler/escape-analysis.js
+++ b/test/mjsunit/compiler/escape-analysis.js
@@ -200,3 +200,44 @@
   check(27, 27); check(27, 27);
   assertEquals(130, sum);
 })();
+
+
+// Test OSR into a loop with captured objects.
+(function testOSR() {
+  function constructor() {
+    this.a = 23;
+  }
+  function osr1(length) {
+    assertEquals(23, (new constructor()).a);
+    var result = 0;
+    for (var i = 0; i < length; i++) {
+      result = (result + i) % 99;
+    }
+    return result;
+  }
+  function osr2(length) {
+    var result = 0;
+    for (var i = 0; i < length; i++) {
+      result = (result + i) % 99;
+    }
+    assertEquals(23, (new constructor()).a);
+    return result;
+  }
+  function osr3(length) {
+    var result = 0;
+    var o = new constructor();
+    for (var i = 0; i < length; i++) {
+      result = (result + i) % 99;
+    }
+    assertEquals(23, o.a);
+    return result;
+  }
+  function test(closure) {
+    assertEquals(45, closure(10));
+    assertEquals(45, closure(10));
+    assertEquals(10, closure(50000));
+  }
+  test(osr1);
+  test(osr2);
+  test(osr3);
+})();