6743188: incomplete fix for 6700047 C2 failed in idom_no_update Reviewed-by: rasbold, kvn

6667595: Set probability FAIR for pre-, post- loops and ALWAYS for main loop Summary: Fix loop's probability. Add optimizations to avoid spilling. Change InlineSmallCode to product flag. Reviewed-by: never

Merge

6700107: java/lang/Class/forName/TooManyDimensions.java crashes with SIGSEGV in c2 compiler with fastdebug Summary: objArrayKlass::compute_modifier_flags was unnecessarily recursive Reviewed-by: kamg