8157957: ClassNotFoundException: jdk.test.lib.JDKToolFinder
Reviewed-by: coleenp, gtriantafill, mseledtsov, iignatyev, dholmes, dsamersoff

8157831: JVMCI tests should not be executed on linux-arm32
Reviewed-by: dpochepk, dholmes

8154258: [TESTBUG] Various serviceability tests fail compilation
Summary: Replace sun.misc.Unsafe with jdk.internal.misc.Unsafe
Reviewed-by: chegar, kvn

8133416: [TESTBUG] Remove @ignore for closed/runtime/4345157/Prog.java
Summary: rewrote test in Java with a number of improvements and conditional exclusion using make file
Reviewed-by: dholmes, ctornqvi, ddmitriev