When parsing error occur while formatting a non-file buffer. It'll cause a real error because we're trying to pass buffer-file-name which is null to gofmt--process-errors and gofmt--process-errors is trying to get file-name of that value. This commit pass buffer-name to gofmt--process-errors if current buffer is non-file.
When parsing error occur while formatting a non-file buffer. It'll cause a real error because we're trying to pass
buffer-file-namewhich is null togofmt--process-errorsandgofmt--process-errorsis trying to getfile-nameof that value. This commit passbuffer-nametogofmt--process-errorsif current buffer is non-file.