fix printing of parents to extensions in @time_imports

(cherry picked from commit 6bd658e)

Author: KristofferC

base/loading.jl

@@ -1020,11 +1020,9 @@ function _include_from_serialized(pkg::PkgId, path::String, ocachepath::Union{No
                 elapsed = round((time_ns() - t_before) / 1e6, digits = 1)
                 comp_time, recomp_time = cumulative_compile_time_ns() .- t_comp_before
                 print(lpad(elapsed, 9), " ms  ")
-                for extid in EXT_DORMITORY
-                    if extid.id == pkg
-                        print(extid.parentid.name, " → ")
-                        break
-                    end
+                parentid = get(EXT_PRIMED, pkg, nothing)
+                if parentid !== nothing
+                    print(parentid.name, " → ")
                 end
                 print(pkg.name)
                 if comp_time > 0