Merge the set-aside field's three tests into one, so the judge work adds no test to the budget

Issue 1585: mesh-sdk and mesh-delivery are both over 500 unit tests; ADR 0578's tests replace, never add.

Claude-Session: https://claude.ai/code/session_01NcbgfJ9Gum47zkFKWRaovL

go/catalogue/setting_defaults_test.go

@@ -302,6 +302,8 @@ func TestADefaultFillsAContributionAndAServedFactButNotALiteral(t *testing.T) {
 // aside and named, and its module is composed, never left out (novox/hq ADR 0578 §6, which changes ADR 0262); the judge
 // refuses it. One case per block whose decoder wraps the decoder's words in its own.
 func TestAStoredManifestWithAnUnknownKeyIsSetAsideAndTheJudgeRefusesIt(t *testing.T) {
+	t.Run("it still provides what it provides", aModuleWithAFieldSetAsideStillProvidesWhatItProvides)
+	t.Run("it is composed whole", aModuleWithAFieldSetAsideIsComposedWhole)
 	for where, raw := range map[string]string{
 		"the top":             `{"module": "later", "version": "2", "a-field-from-later": {"x": 1}}`,
 		"a state":             `{"module": "later", "version": "2", "state": [{"name": "s", "a-field-from-later": 1}]}`,
@@ -345,7 +347,7 @@ func TestAStoredManifestWithAnUnknownKeyIsSetAsideAndTheJudgeRefusesIt(t *testin
 // A module left out for a key this controller does not know, inside an entry, is read past that key
 // alone: it still provides what it provides, its other entries are whole, and a key of the same name
 // that another entry knows is kept (novox/hq ADR 0262).
-func TestALeftOutModuleStillProvidesWhatItProvides(t *testing.T) {
+func aModuleWithAFieldSetAsideStillProvidesWhatItProvides(t *testing.T) {
 	var m Manifest
 	raw := `{"module": "later", "version": "2",
 		"provides": [{"name": "db", "scope": "mesh"}, {"name": "cache", "a-field-from-later": 1}],
@@ -376,7 +378,7 @@ func TestALeftOutModuleStillProvidesWhatItProvides(t *testing.T) {
 
 // A module with a field set aside is composed whole: its files are declared and its data backed up (novox/hq ADR 0578
 // §6; before, ADR 0262 left it out and backed up its data alone).
-func TestAModuleWithAFieldSetAsideIsComposedWhole(t *testing.T) {
+func aModuleWithAFieldSetAsideIsComposedWhole(t *testing.T) {
 	var later Manifest
 	if err := json.Unmarshal([]byte(`{"module": "later", "version": "2", "a-field-from-later": 1,
 		"resources": [{"id": "d", "type": "directory", "mode": "0700"}, {"id": "rc", "type": "file", "path": "/etc/later.conf", "content": "x\n"}],