Fix debug assertion failure in move to file refactor for symbols exported separately

Co-authored-by: RyanCavanaugh <[email protected]>

Author: Copilot

src/services/refactors/helpers.ts

@@ -75,24 +75,25 @@ export function addTargetFileImports(
      * but sometimes it fails because of unresolved imports from files, or when a source file is not available for the target file (in this case when creating a new file).
      * So in that case, fall back to copying the import verbatim.
      */
-    importsToCopy.forEach(([isValidTypeOnlyUseSite, declaration], symbol) => {
-        const targetSymbol = skipAlias(symbol, checker);
-        if (checker.isUnknownSymbol(targetSymbol)) {
-            importAdder.addVerbatimImport(Debug.checkDefined(declaration ?? findAncestor(symbol.declarations?.[0], isAnyImportOrRequireStatement)));
-        }
-        else if (targetSymbol.parent === undefined) {
-            if (targetSymbol.flags & SymbolFlags.Module) {
-                Debug.assert(declaration !== undefined, "expected module symbol to have a declaration");
-                importAdder.addImportForModuleSymbol(symbol, isValidTypeOnlyUseSite, declaration);
-            }
-            else {
-                // For symbols without a parent that aren't modules, fall back to verbatim import
-                importAdder.addVerbatimImport(Debug.checkDefined(declaration ?? findAncestor(symbol.declarations?.[0], isAnyImportOrRequireStatement)));
-            }
-        }
-        else {
-            importAdder.addImportFromExportedSymbol(targetSymbol, isValidTypeOnlyUseSite, declaration);
-        }
+    importsToCopy.forEach(([isValidTypeOnlyUseSite, declaration], symbol) => {
+        const targetSymbol = skipAlias(symbol, checker);
+        if (checker.isUnknownSymbol(targetSymbol)) {
+            importAdder.addVerbatimImport(Debug.checkDefined(declaration ?? findAncestor(symbol.declarations?.[0], isAnyImportOrRequireStatement)));
+        }
+        else if (targetSymbol.parent === undefined) {
+            Debug.assert(declaration !== undefined, "expected module symbol to have a declaration");
+            const aliasedSymbol = checker.getAliasedSymbol(symbol);
+            if (aliasedSymbol.flags & SymbolFlags.Module) {
+                importAdder.addImportForModuleSymbol(symbol, isValidTypeOnlyUseSite, declaration);
+            }
+            else {
+                // If the aliased symbol is not a module, fall back to verbatim import
+                importAdder.addVerbatimImport(Debug.checkDefined(declaration ?? findAncestor(symbol.declarations?.[0], isAnyImportOrRequireStatement)));
+            }
+        }
+        else {
+            importAdder.addImportFromExportedSymbol(targetSymbol, isValidTypeOnlyUseSite, declaration);
+        }
     });
 
     addImportsForMovedSymbols(targetFileImportsFromOldFile, oldFile.fileName, importAdder, program);