8168295: [JVMCI] -XX:+JVMCIPrintProperties should exit after printing
Reviewed-by: kvn, twisti

8167194: [JVMCI] no reliable mechanism for querying JVMCI system properties
Reviewed-by: kvn

8163864: [JVMCI] move MethodProfileWidth to jvmci_globals.hpp
Reviewed-by: zmajo

8161265: [JVMCI] EnableJVMCI should only be required when its not implied by other flags
Reviewed-by: twisti, kvn, never

8150900: Implement diagnostic_pd
Reviewed-by: twisti, gziemski, kevinw

8073500: Prevent certain commercial flags from being changed at runtime
Summary: Implement new writeable mechanism for flag control
Reviewed-by: coleenp, iklam

8145333: -XX:+EnableJVMCI -XX:+UseJVMCICompiler -XX:-EnableJVMCI makes JVM crash
Summary: JVMCI Flags are checked for consistency after parse.
Reviewed-by: twisti

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