Add separate - non BOOST - test program to test exit(1)

tests/parser/ParseContextTests.cpp

@@ -749,15 +749,6 @@ BOOST_AUTO_TEST_CASE( test_invalid_wtemplate_config ) {
 }
 
 
-BOOST_AUTO_TEST_CASE(Test_EXIT1) {
-/*
-  The error handler EXIT1 is not tested at all. The reason is that testing that
-  would require the setup of an extra process and then check the exit status of
-  the extra process - that kind of feelt a bit over the top.
-*/
-}
-
-
 /*
   If there are errors the ErrorGuard destructor will print error messages and
   call std::terminate(); if you do not accept the std::terminate in the