8056237: [TESTBUG] gc/g1/TestHumongousShrinkHeap.java fails due to OOM Summary: Added respect for available memory. Renamed function names Reviewed-by: jwilhelm, tschatzl Contributed-by: andrey.x.zakharov@oracle.com

^build/
^dist/
^testoutput/
/nbproject/private/
^make/netbeans/.*/build/
^make/netbeans/.*/dist/
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