Reviewed-by: brutisso, tschatzl

Summary: Adds support for large(>4G) heap dumps in hprof format. Adds tests and updates testlibrary.
Reviewed-by: sla, allwin
Contributed-by: fredrik.arvidsson@oracle.com

Summary: Removed the obsolete test from the test group file
Reviewed-by: sla, ctornqvi, dholmes

Summary: Moved the tests to /testlibrary_tests and updated TEST.groups
Reviewed-by: dholmes, sla

Summary: Change JDKToolFinder to look in compile.jdk if the executable cannot be found in test.jdk
Reviewed-by: dholmes, hseigel

Summary: Updated the test list with the new test name.
Reviewed-by: brutisso, ehelin

Reviewed-by: coleenp, hseigel

Reviewed-by: dcubed, mchung, hseigel

Summary: Define profile-based test groups.
Reviewed-by: dcubed, mchung