[asmtools] Update from CONSTANT_ConstantDynamic to CONSTANT_Dynamic

[Paul Sandoz]

Hi.

CONSTANT_ConstantDynamic was renamed in the specification to CONSTANT_Dynamic.

Please review the following patch that updates asmtools to reflect that change:

  http://cr.openjdk.java.net/~psandoz/jdk10/asmtools-contant-dynamic-rename/webrev/index.html <http://cr.openjdk.java.net/~psandoz/jdk10/asmtools-contant-dynamic-rename/webrev/index.html>

Thanks,
Paul.