6937142: G1: improvements to debugging output (S-M)
Summary: Various fixes to the G1 debugging output.
Reviewed-by: johnc, iveresov
^build/
^dist/
/nbproject/private/
^src/share/tools/hsdis/build/
^src/share/tools/IdealGraphVisualizer/[a-zA-Z0-9]*/build/
^src/share/tools/IdealGraphVisualizer/build/
^src/share/tools/IdealGraphVisualizer/dist/