Move Launcher classes shared between tests and prod in a separate lib

This is necessary because otherwise those are included in several gradle projects. Gradle doesn't support the same files imported in different projects, and it removes them from a random one if it happens, resulting in missing symbols.

This extracts the shared files in a new target, and adds it as dep of the original target.

Test: Build launcher + execute a few tests manually with gradle + verify that Launcher.java can resolve all symbols with gradle config
Bug: 262267728
Change-Id: Ida5b25c45320d517603834112f4699e4d3344c03

Android.bp

@@ -80,10 +80,10 @@ android_library {
         "androidx.preference_preference",
         "SystemUISharedLib",
         "SystemUIAnimationLib",
+        "launcher-testing-shared",
     ],
     srcs: [
         "tests/tapl/**/*.java",
-        "src/com/android/launcher3/testing/shared/**/*.java",
     ],
     resource_dirs: [ ],
     manifest: "tests/tapl/AndroidManifest.xml",
@@ -169,7 +169,10 @@ android_library {
 android_library {
     name: "Launcher3CommonDepsLib",
     srcs: ["src_build_config/**/*.java"],
-    static_libs: ["Launcher3ResLib"],
+    static_libs: [
+        "Launcher3ResLib",
+        "launcher-testing-shared",
+    ],
     sdk_version: "current",
     min_sdk_version: min_launcher3_sdk_version,
     manifest: "AndroidManifest-common.xml",

tests/Android.bp

@@ -117,3 +117,15 @@ android_test {
     test_config: "Launcher3Tests.xml",
     data: [":Launcher3"]
 }
+
+// Shared between tests and launcher
+android_library {
+    name: "launcher-testing-shared",
+    srcs: [
+        "shared/com/android/launcher3/testing/shared/**/*.java"
+    ],
+    resource_dirs: [ ],
+    manifest: "shared/AndroidManifest.xml",
+    sdk_version: "current",
+    min_sdk_version: min_launcher3_sdk_version,
+ }

tests/shared/AndroidManifest.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+**
+** Copyright 2023, 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.
+*/
+-->
+<manifest package="com.android.launcher3.testing.shared">
+</manifest>