fixup! test(material/schematics): add package.json to golden project

Author: mmalerba

src/material/schematics/ng-generate/mdc-migration/rules/ts-migration/runtime-migrator.ts

@@ -44,7 +44,7 @@ export class RuntimeMigrator {
       capitalizedComponent += word.toUpperCase() + '_';
     });
 
-    /// Remove trailing underscore at the end
+    // Remove trailing underscore at the end
     capitalizedComponent = capitalizedComponent.slice(0, -1);
 
     const specifierReplacements = [