`expect_no_error()` loses traceback

[hadley]

e.g.

Failure ([test-dbplyr.R:57:3](vscode-file://vscode-app/Applications/Positron.app/Contents/Resources/app/out/vs/code/electron-browser/workbench/workbench.html#)): joins, semi_joins, and set ops work
Expected `dplyr::collect(dplyr::semi_join(db1, db2, by = "x"))` not to throw any errors.
Actually got a <simpleError> with message:
  no applicable method for 'table_path_components' applied to an object of class "c('Pool', 'R6')"

Having the traceback is very useful.