8006753: fix failed for JDK-8002415 White box testing API for HotSpot Summary: Modify WhiteBoxAPI to use interface classes from test/testlibrary instead, add ClassFileInstaller to resolve the boot class path issue Reviewed-by: ctornqvi, dsamersoff, coleenp, kvn

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; This .DEF file is a placeholder for one which is automatically
; generated during the build process. See
; make\windows\build_vm_def.sh and
; make\windows\makefiles\projectcreator.make (esp. the "-prelink"
; options).
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