// pattern: package dependency loop: "PkgA" depends on "PkgC", which depends on "PkgB", which depends on "PkgA"packagePkgA;importPkgC::Foo;exportPkgC::Foo;endpackagepackagePkgB;importPkgA::Foo;exportPkgA::Foo;endpackagepackagePkgC;importPkgB::Foo;exportPkgB::Foo;endpackagemoduletop;initial$display(PkgA::Foo);endmodule