Add [tailRecursive] annotation to built-ins

compiler/frontend/builtins/jet/tailRecursive.kotlin_class

@@ -0,0 +1,4 @@
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compiler/frontend/builtins/jet/volatile.kotlin_class

@@ -1,4 +1,4 @@
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compiler/testData/builtin-classes.txt

@@ -1640,6 +1640,10 @@ public final annotation class suppress : jet.Annotation {
     /*primary*/ public constructor suppress(/*0*/ vararg names: jet.String /*jet.Array<jet.String>*/)
 }
 
+public final annotation class tailRecursive : jet.Annotation {
+    /*primary*/ public constructor tailRecursive()
+}
+
 public final annotation class volatile : jet.Annotation {
     /*primary*/ public constructor volatile()
 }

core/descriptors/src/org/jetbrains/jet/lang/types/lang/KotlinBuiltIns.java

@@ -401,6 +401,11 @@ public class KotlinBuiltIns {
         return getBuiltInClassByName("volatile");
     }
 
+    @NotNull
+    public ClassDescriptor getTailRecursiveAnnotationClass() {
+        return getBuiltInClassByName("tailRecursive");
+    }
+
     @NotNull
     public ClassDescriptor getDeprecatedAnnotation() {
         return getBuiltInClassByName("deprecated");
@@ -955,6 +960,10 @@ public class KotlinBuiltIns {
         return containsAnnotation(declarationDescriptor, getDeprecatedAnnotation());
     }
 
+    public boolean isTailRecursive(@NotNull DeclarationDescriptor declarationDescriptor) {
+        return containsAnnotation(declarationDescriptor, getTailRecursiveAnnotationClass());
+    }
+
     static boolean containsAnnotation(DeclarationDescriptor descriptor, ClassDescriptor annotationClass) {
         List<AnnotationDescriptor> annotations = descriptor.getOriginal().getAnnotations();
         if (annotations != null) {

idea/builtinsSrc/jet/Library.kt

@@ -7,6 +7,7 @@ public annotation class atomic : Annotation
 public annotation class data : Annotation
 public annotation class deprecated(value: String) : Annotation
 public annotation class suppress(vararg names: String)
+public annotation class tailRecursive : Annotation
 
 public annotation class noinline
 public annotation class inline(public val strategy: InlineStrategy = InlineStrategy.AS_FUNCTION)

runtime/src/jet/tailRecursive.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2010-2013 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;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.CLASS)
+@Target({ElementType.METHOD})
+public @interface tailRecursive {
+}