8141338: Move jdk.internal.dynalink package to jdk.dynalink
Reviewed-by: hannesw, sundar

8141702: Add support for Symbol property keys
Reviewed-by: attila, sundar

8139931: Introduce Operation objects in Dynalink instead of string encoding
Reviewed-by: hannesw, sundar

8136544: Call site switching to megamorphic causes incorrect property read
Reviewed-by: attila, mhaupt

8060101: AssertionError: __noSuchProperty__ placeholder called from NativeJavaImporter
Reviewed-by: attila, jlaskey

8047764: Indexed or polymorphic set on global affects Object.prototype
Reviewed-by: lagergren, attila

8054834: Modular Source Code
Reviewed-by: alanb, chegar, ihse, mduigou
Contributed-by: alan.bateman@oracle.com, alex.buckley@oracle.com, chris.hegarty@oracle.com, erik.joelsson@oracle.com, jonathan.gibbons@oracle.com, karen.kinnear@oracle.com, magnus.ihse.bursie@oracle.com, mandy.chung@oracle.com, mark.reinhold@oracle.com, paul.sandoz@oracle.com