Address some review comments

Addressed comments in dex cache and class table. Added class table
test.

Test: mm test-art-host-gtest-class_table_test -j20

Change-Id: I3ec0282247187acb1ec7af25b309501f001a1c3e
diff --git a/build/Android.gtest.mk b/build/Android.gtest.mk
index 1691dbb..d59d8f6 100644
--- a/build/Android.gtest.mk
+++ b/build/Android.gtest.mk
@@ -86,6 +86,7 @@
 
 ART_GTEST_atomic_method_ref_map_test_DEX_DEPS := Interfaces
 ART_GTEST_class_linker_test_DEX_DEPS := Interfaces MethodTypes MultiDex MyClass Nested Statics StaticsFromCode
+ART_GTEST_class_table_test_DEX_DEPS := XandY
 ART_GTEST_compiler_driver_test_DEX_DEPS := AbstractMethod StaticLeafMethods ProfileTestMultiDex
 ART_GTEST_dex_cache_test_DEX_DEPS := Main Packages MethodTypes
 ART_GTEST_dex_file_test_DEX_DEPS := GetMethodSignature Main Nested
@@ -598,6 +599,7 @@
 ART_TEST_TARGET_VALGRIND_GTEST_RULES :=
 ART_GTEST_TARGET_ANDROID_ROOT :=
 ART_GTEST_class_linker_test_DEX_DEPS :=
+ART_GTEST_class_table_test_DEX_DEPS :=
 ART_GTEST_compiler_driver_test_DEX_DEPS :=
 ART_GTEST_dex_file_test_DEX_DEPS :=
 ART_GTEST_exception_test_DEX_DEPS :=