Policy clarified: No need to share a "distribution medium"

Including code built from restricted sources in a distribution medium
does not require sharing the code for building the distribution medium.

Test: m cts dist

Test: m cts dist gts (requires cherry-pick to internal)

Change-Id: I7fcd889b11a97f8deaf4de9d72fdadd09deebe30

tools/compliance/cmd/listshare/listshare.go

@@ -149,6 +149,9 @@ func listShare(stdout, stderr io.Writer, rootFS fs.FS, files ...string) error {
 	// Group the resolutions by project.
 	presolution := make(map[string]compliance.LicenseConditionSet)
 	for _, target := range shareSource.AttachesTo() {
+		if shareSource.IsPureAggregate(target) && !target.LicenseConditions().MatchesAnySet(compliance.ImpliesShared) {
+			continue
+		}
 		rl := shareSource.Resolutions(target)
 		sort.Sort(rl)
 		for _, r := range rl {