message: Drop unused property from Transformed
diff: @@ -83,14 +83,12 @@ function transform(code: Code, options: TraverseOptions): Transformed {
  return {
  code: newCode,
  - hasCodeChanged: newCode !== code,
  - loc: ast.loc
  + hasCodeChanged: newCode !== code
  };
  }
  interface Transformed {
  code: Code;
  - loc: t.SourceLocation | null;
  hasCodeChanged: boolean;
  }
  