[turbofan] Implement OSR for outer loops.

src/compiler/common-operator.h

Index: src/compiler/common-operator.h
diff --git a/src/compiler/common-operator.h b/src/compiler/common-operator.h
index 99389895093da15b2ee174be61c2abdcd3ce70bf..baefb03a0c0af6fcff19730cb85414d1bd93af41 100644
--- a/src/compiler/common-operator.h
+++ b/src/compiler/common-operator.h
@@ -173,6 +173,10 @@ class CommonOperatorBuilder FINAL : public ZoneObject {
   const Operator* Loop(int controls);
   const Operator* Parameter(int index);
 
+  const Operator* OsrNormalEntry();
+  const Operator* OsrLoopEntry();
+  const Operator* OsrValue(int index);
+
   const Operator* Int32Constant(int32_t);
   const Operator* Int64Constant(int64_t);
   const Operator* Float32Constant(volatile float);