Kill constants.h and fix some copyright headers.

Change-Id: I51c04d731d6de035328781d8ac134ad6fcf49897
diff --git a/src/stack_indirect_reference_table.h b/src/stack_indirect_reference_table.h
index 5f37294..681405f 100644
--- a/src/stack_indirect_reference_table.h
+++ b/src/stack_indirect_reference_table.h
@@ -17,6 +17,7 @@
 #ifndef ART_SRC_STACK_INDIRECT_REFERENCE_TABLE_H_
 #define ART_SRC_STACK_INDIRECT_REFERENCE_TABLE_H_
 
+#include "casts.h"
 #include "logging.h"
 #include "macros.h"
 #include "thread.h"