lshal: --debug omits info on parent objects.

Instead, print a short message that contains the information
on the row that it should look up.

Test: lshal --debug
Test: lshal debug -E android.hardware.health@2.0::IHealth/default
Test: lshal_test
Fixes: 160745145
Change-Id: I7d5ab9fba097c0fb0b080ec52682084c65ba9f50
diff --git a/cmds/lshal/ParentDebugInfoLevel.h b/cmds/lshal/ParentDebugInfoLevel.h
new file mode 100644
index 0000000..12ac9c8
--- /dev/null
+++ b/cmds/lshal/ParentDebugInfoLevel.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+#pragma once
+
+namespace android {
+namespace lshal {
+
+// Describe verbosity when dumping debug information on a HAL service by
+// referring to a parent HAL interface FQName (for example, when dumping debug information
+// on foo@1.0::IFoo but the HAL implementation is foo@1.1::IFoo).
+enum class ParentDebugInfoLevel {
+    // Write nothing.
+    NOTHING,
+    // Write a short description that includes the FQName of the real implementation.
+    FQNAME_ONLY,
+    // Write full debug info.
+    FULL,
+};
+
+} // namespace lshal
+} // namespace android