8049892: Replace uses of 'new Integer()' with appropriate alternative across core classes
Reviewed-by: psandoz, prr
Contributed-by: otaviopolianasantana@gmail.com
8047737: Move array component mirror to instance of java/lang/Class
Summary: Add field in java.lang.Class for componentType to simplify oop processing in JVM
Reviewed-by: fparain, twisti, mchung