ART: Add phase events

Add VMStart, VMInit and VMDeath event support. Add removal of
jvmtiEnv from the event handler. Add and extend tests.

Bug: 31684920
Test: m test-art-host-901-hello-ti-agent
Change-Id: I914dfac98c2fb7b59efdfde69597a7fcd20fd486
diff --git a/runtime/openjdkjvmti/events.cc b/runtime/openjdkjvmti/events.cc
index f38aa86..7182055 100644
--- a/runtime/openjdkjvmti/events.cc
+++ b/runtime/openjdkjvmti/events.cc
@@ -144,6 +144,18 @@
   envs.push_back(env);
 }
 
+void EventHandler::RemoveArtJvmTiEnv(ArtJvmTiEnv* env) {
+  auto it = std::find(envs.begin(), envs.end(), env);
+  if (it != envs.end()) {
+    envs.erase(it);
+    for (size_t i = static_cast<size_t>(ArtJvmtiEvent::kMinEventTypeVal);
+         i <= static_cast<size_t>(ArtJvmtiEvent::kMaxEventTypeVal);
+         ++i) {
+      RecalculateGlobalEventMask(static_cast<ArtJvmtiEvent>(i));
+    }
+  }
+}
+
 static bool IsThreadControllable(ArtJvmtiEvent event) {
   switch (event) {
     case ArtJvmtiEvent::kVmInit: