Add tools specific annotations to the API.

Those annotations are not runtime retention and have zero impact
on the device builds.

Change-Id: I18d905fccfe18eb621e1411d7ae7ba97910cc727

Author: Xavier Ducrohet

api/current.txt

@@ -2402,6 +2402,16 @@ package android.animation {
 
 }
 
+package android.annotation {
+
+  public abstract class SuppressLint implements java.lang.annotation.Annotation {
+  }
+
+  public abstract class TargetApi implements java.lang.annotation.Annotation {
+  }
+
+}
+
 package android.app {
 
   public abstract class ActionBar {

core/java/android/annotation/SuppressLint.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * 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 android.annotation;
+
+import static java.lang.annotation.ElementType.CONSTRUCTOR;
+import static java.lang.annotation.ElementType.FIELD;
+import static java.lang.annotation.ElementType.LOCAL_VARIABLE;
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.ElementType.PARAMETER;
+import static java.lang.annotation.ElementType.TYPE;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/** Indicates that Lint should ignore the specified warnings for the annotated element. */
+@Target({TYPE, FIELD, METHOD, PARAMETER, CONSTRUCTOR, LOCAL_VARIABLE})
+@Retention(RetentionPolicy.CLASS)
+public @interface SuppressLint {
+    /**
+     * The set of warnings (identified by the lint issue id) that should be
+     * ignored by lint. It is not an error to specify an unrecognized name.
+     */
+    String[] value();
+}

core/java/android/annotation/TargetApi.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * 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 android.annotation;
+
+import static java.lang.annotation.ElementType.CONSTRUCTOR;
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.ElementType.TYPE;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/** Indicates that Lint should treat this type as targeting a given API level, no matter what the
+    project target is. */
+@Target({TYPE, METHOD, CONSTRUCTOR})
+@Retention(RetentionPolicy.CLASS)
+public @interface TargetApi {
+    /**
+     * This sets the target api level for the type..
+     */
+    int value();
+}