Revision 695618

Fixed a bug where class loader delegation for dynamic imports was happening
when it shouldn't. Specifically, if a bundle exports a given package or
has any sort of wire for that package (i.e., import-package or require-bundle),
then it should not be able to dynamically import that package. Previously,
only existing imported packages were being checked, not exported packages
or packages acquired through require-bundle. (FELIX-724)