Merge pull request #13405 from zhengbli/13137

Support import fix for missing namespace

src/services/codefixes/importFixes.ts

@@ -115,6 +115,7 @@ namespace ts.codefix {
     registerCodeFix({
         errorCodes: [
             Diagnostics.Cannot_find_name_0.code,
+            Diagnostics.Cannot_find_namespace_0.code,
             Diagnostics._0_refers_to_a_UMD_global_but_the_current_file_is_a_module_Consider_adding_an_import_instead.code
         ],
         getCodeActions: (context: CodeFixContext) => {