Create collection-ktx adapted from core-ktx util.
Bug: 69247886
Test: ./gradlew :collection-ktx:build
Change-Id: I08e006328afd178e4c571a9c742e1c523dd13d6c
diff --git a/testutils-ktx/NO_DOCS b/testutils-ktx/NO_DOCS
new file mode 100644
index 0000000..4dad694
--- /dev/null
+++ b/testutils-ktx/NO_DOCS
@@ -0,0 +1,17 @@
+# Copyright (C) 2017 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.
+
+Having this file, named NO_DOCS, in a directory will prevent
+Android javadocs from being generated for java files under
+the directory. This is especially useful for test projects.