Since some lines may produce multiple warnings/errors, the regex
supports now multiple carets, which indicates the number of lines to
walk back. This is a bit hacky, but it works :-)
Sometimes re-usable components need to act as containers that allow the
user to place other items inside. The component needs to be able to
control the placement of these user-provided elements. That is what the
new
$children
expression inside elements does.
I added files unrelated to the syntax tests in the tests/ folder, but
that won't scale. Those files aren't meant to be subject to the syntax
test and there are more files to come in the future. So this change
moves the syntax test related cases into a dedicated sub-folder, as well
as the type loader/registry related ones.
