8153514: Whitebox API should allow compilation of <clinit>
Summary: Added Whitebox API method to trigger compilation of static initializer.
Reviewed-by: zmajo, kvn, iignatyev
8149488: Incorrect declaration of bitsInByte in regmask.cpp.
Summary: Corrected BITS_IN_BYTE_ARRAY_SIZE value as 256 for all bitsInByte usage.
Reviewed-by: dlong, mcberg, thartmann, vlivanov