Back port the annotations support lib to mr1. do not merge.

Change-Id: I557354e2f95126680981e75ddebc28764825d02a
diff --git a/annotations/Android.mk b/annotations/Android.mk
new file mode 100644
index 0000000..cedce31
--- /dev/null
+++ b/annotations/Android.mk
@@ -0,0 +1,28 @@
+#
+# Copyright (C) 2008 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.
+#
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
+LOCAL_JAVA_RESOURCE_DIRS := src
+
+LOCAL_MODULE := annotations
+
+include $(BUILD_STATIC_JAVA_LIBRARY)
+
+# Include this library in the build server's output directory
+$(call dist-for-goals, droidcore sdk, $(LOCAL_BUILT_MODULE):annotations.jar)
+
diff --git a/annotations/src/android/annotation/SuppressLint.java b/annotations/src/android/annotation/SuppressLint.java
new file mode 100644
index 0000000..2d3456b
--- /dev/null
+++ b/annotations/src/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();
+}
diff --git a/annotations/src/android/annotation/TargetApi.java b/annotations/src/android/annotation/TargetApi.java
new file mode 100644
index 0000000..cba4ebd
--- /dev/null
+++ b/annotations/src/android/annotation/TargetApi.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 treat this type as targeting a given API level, no matter what the
+    project target is. */
+@Target({TYPE})
+@Retention(RetentionPolicy.CLASS)
+public @interface TargetApi {
+    /**
+     * This sets the target api level for the type..
+     */
+    int value();
+}