8024137: Flags should be set using the proper macro
Reviewed-by: sangheki, drwhite, jmasa

8156028: G1YoungGenSizer _adaptive_size not correct when setting NewSize and MaxNewSize to the same value
Reviewed-by: jmasa, sangheki, drwhite

8154154: Separate G1 specific policy code from the CollectorPolicy class hierarchy
Summary: Move G1 runtime policy code to new class G1Policy which is unrelated to CollectorPolicy
Reviewed-by: kbarrett, ehelin

8154051: Change G1YoungGenSizer to use UL log_warning instead of warning
Reviewed-by: brutisso, mgerdin

8151365: Move G1YoungGenSizer to a separate file
Reviewed-by: mgerdin, tschatzl