Re-enables error reporting for the current thread.
This function wraps the `VALGRIND_ENABLE_ERROR_REPORTING` macro. It decrements
the internal suppression counter established by
[`disable_error_reporting`](disable_error_reporting).
# Behavior
If the internal counter reaches zero as a result of this call, error reporting
resumes for the current thread.
## Note
Requires Valgrind **3.0** or higher.