8165755: [JVMCI] replace use of vm_abort with vm_exit
Reviewed-by: dholmes

8156034: [JVMCI] Notify the jvmci compiler on completion of a bootstrap
Reviewed-by: twisti
Contributed-by: josef.eisl@jku.at

8152311: [JVMCI] allow JVMCI compiler to change the compilation policy for a method
Reviewed-by: kvn, never

8148507: [JVMCI] mitigate deadlocks related to JVMCI compiler under -Xbatch
Reviewed-by: twisti, dholmes

8145435: [JVMCI] some tests on Windows fail with: assert(!thread->is_Java_thread()) failed: must not be java thread
Reviewed-by: never, dnsimon, dholmes, coleenp

8142329: [JVMCI] pass Handle by value
Reviewed-by: coleenp, twisti
Contributed-by: Roland Schatz <roland.schatz@oracle.com>

8139170: JVMCI refresh
Reviewed-by: kvn

8137167: JEP165: Compiler Control: Implementation task
Summary: Compiler Control JEP
Reviewed-by: roland, twisti, zmajo, simonis

8136421: JEP 243: Java-Level JVM Compiler Interface
Reviewed-by: ihse, alanb, roland, coleenp, iveresov, kvn, kbarrett