Move implementations from class_root.h to -inl.h .

Make it possible to include the definition of enum ClassRoot
without pulling in a lot of other headers.

Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Test: aosp_taimen-userdebug boots.
Change-Id: Ic90fdd70bfe0c5428a5c9a0d7901ea7e15b03488
diff --git a/runtime/mirror/emulated_stack_frame.cc b/runtime/mirror/emulated_stack_frame.cc
index cfdab8f..19e40dc 100644
--- a/runtime/mirror/emulated_stack_frame.cc
+++ b/runtime/mirror/emulated_stack_frame.cc
@@ -19,7 +19,7 @@
 #include "array-alloc-inl.h"
 #include "array-inl.h"
 #include "class-alloc-inl.h"
-#include "class_root.h"
+#include "class_root-inl.h"
 #include "handle.h"
 #include "jvalue-inl.h"
 #include "method_handles-inl.h"