Summary: Wrap system property and reflection accesses under doPrivileged.  Ensure constant pool linkage bypasses the SM as specified.
Reviewed-by: kvn, never

7049415: Failure of resolution of sym.reference to the c.s.s. should be wrapped in BootstrapMethodError
Summary: Wrap invokedynamic linkage errors in BootstrapMethodError, as needed.
Reviewed-by: never