Make all libgui tests print their name to logcat on begin/end

Follow up to If3811e5e553ecf97c35967128f3d59b0079d9f3a where existing
ad hoc test name logs were converted from ALOGV to ALOGD. Many tests
weren't logging their names at all, so this an attempt to centralize
and enforce that logic as much as possible.

Motivation: this makes debugging test failures significantly easier IMO.

Bug: 257123981
Test: libgui_test (note: some upcoming exclusions and fixes required)
Change-Id: I97c7cdce23b7edfa3bc655a1f5216c3506582a7c
diff --git a/libs/gui/tests/LibGuiMain.cpp b/libs/gui/tests/LibGuiMain.cpp
new file mode 100644
index 0000000..10f7207
--- /dev/null
+++ b/libs/gui/tests/LibGuiMain.cpp
@@ -0,0 +1,38 @@
+/*
+ * 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.
+ */
+
+#include "gtest/gtest.h"
+#include "log/log.h"
+
+namespace {
+
+class TestCaseLogger : public ::testing::EmptyTestEventListener {
+    void OnTestStart(const ::testing::TestInfo& testInfo) override {
+        ALOGD("Begin test: %s#%s", testInfo.test_suite_name(), testInfo.name());
+    }
+
+    void OnTestEnd(const testing::TestInfo& testInfo) override {
+        ALOGD("End test:   %s#%s", testInfo.test_suite_name(), testInfo.name());
+    }
+};
+
+} // namespace
+
+int main(int argc, char** argv) {
+    testing::InitGoogleTest(&argc, argv);
+    testing::UnitTest::GetInstance()->listeners().Append(new TestCaseLogger());
+    return RUN_ALL_TESTS();
+}
\ No newline at end of file