Add private sequence-item placement

internal/engine/records.go

@@ -183,16 +183,18 @@ type Location struct {
 // namespace-relative filesystem path; synthetic sources have no Path.
 // ImportedFrom identifies the declaration that included this source.
 type SourceInfo struct {
-	ID            string
-	Label         string
-	Path          string
-	Destination   Path
-	Layer         Layer
-	Kind          SourceKind
-	UnderlayIndex int
-	ImportedFrom  *Location
-	VersionCheck  *SourceVersionCheck
-	namespace     *namespaceToken
+	ID                    string
+	Label                 string
+	Path                  string
+	Destination           Path
+	Layer                 Layer
+	Kind                  SourceKind
+	UnderlayIndex         int
+	ImportedFrom          *Location
+	VersionCheck          *SourceVersionCheck
+	namespace             *namespaceToken
+	placementMode         placementMode
+	destinationUnresolved bool
 }
 
 // SourceVersionCheck is a detached, public-safe record of a source-local