Introduced @KotlinSignature annotation to be used on methods.

compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/JvmStdlibNames.java

@@ -17,6 +17,7 @@
 package org.jetbrains.jet.lang.resolve.java;
 
 import jet.runtime.typeinfo.JetConstructor;
+import jet.runtime.typeinfo.KotlinSignature;
 
 /**
  * @author Stepan Koltsov
@@ -68,6 +69,8 @@ public class JvmStdlibNames {
 
     public static final JvmClassName ASSERT_INVISIBLE_IN_RESOLVER = new JvmClassName("org.jetbrains.jet.rt.annotation.AssertInvisibleInResolver");
 
+    public static final JvmClassName KOTLIN_SIGNATURE = new JvmClassName(KotlinSignature.class.getName());
+    public static final String KOTLIN_SIGNATURE_VALUE_METHOD = "value";
 
     private JvmStdlibNames() {
     }

runtime/src/jet/runtime/typeinfo/KotlinSignature.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2010-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package jet.runtime.typeinfo;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Target;
+
+/**
+ * @author Evgeny Gerashchenko
+ * @since 5/23/12
+ */
+@Target({ElementType.METHOD, ElementType.TYPE, ElementType.CONSTRUCTOR})
+public @interface KotlinSignature {
+    String value();
+}