7121547: G1: High number mispredicted branches while iterating over the marking bitmap Summary: There is a high number of mispredicted branches associated with calling BitMap::iteratate() from within CMBitMapRO::iterate(). Implement a version of CMBitMapRO::iterate() directly using inline-able routines. Reviewed-by: tonyp, iveresov

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^src/share/tools/hsdis/build/
^src/share/tools/IdealGraphVisualizer/[a-zA-Z0-9]*/build/
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^src/share/tools/IdealGraphVisualizer/dist/
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.DS_Store