message: Remove duplicated error reason
diff: export { ErrorReason, toString };
  enum ErrorReason {
  - DidNotFoundIfElseToConvert,
  DidNotFoundNestedIf,
  DidNotFoundBinaryExpression,
  DidNotFoundExtractableCode,
  @@ -34,9 +33,6 @@ enum ErrorReason {
  function toString(reason: ErrorReason): string {
  switch (reason) {
  - case ErrorReason.DidNotFoundIfElseToConvert:
  - return didNotFound("an if else to convert");
  -
  case ErrorReason.DidNotFoundNestedIf:
  return didNotFound("a nested if to bubble up");
  @@ -65,7 +61,7 @@ function toString(reason: ErrorReason): string {
  return didNotFound("a ternary to flip");
  case ErrorReason.DidNotFoundIfElseToConvert:
  - return didNotFound("a valid if statement to convert into ternary");
  + return didNotFound("a valid if statement to convert");
  case ErrorReason.DidNotFoundTernaryToConvert:
  return didNotFound("a ternary to convert into if statement");
  