ART: Add GetClassVersionNumbers.

Add support for GetClassVersionNumbers. Return the dex file version
as major, zero as minor. Add test.

Bug: 31684578
Test: m test-art-host-run-test-912-classes
Change-Id: Ib5082cd58b27a9183d8f19d42d4d8af46a6bb9c9
diff --git a/runtime/openjdkjvmti/OpenjdkJvmTi.cc b/runtime/openjdkjvmti/OpenjdkJvmTi.cc
index e9b7cf5..a55f662 100644
--- a/runtime/openjdkjvmti/OpenjdkJvmTi.cc
+++ b/runtime/openjdkjvmti/OpenjdkJvmTi.cc
@@ -593,7 +593,7 @@
                                            jclass klass,
                                            jint* minor_version_ptr,
                                            jint* major_version_ptr) {
-    return ERR(NOT_IMPLEMENTED);
+    return ClassUtil::GetClassVersionNumbers(env, klass, minor_version_ptr, major_version_ptr);
   }
 
   static jvmtiError GetConstantPool(jvmtiEnv* env,