Python: merge test.py into unittests.py

Author: yoff

python/ql/test/library-tests/regexparser/test.py

@@ -7,3 +7,14 @@
 # Treatment of line breaks
 re.compile(r'(?:.|\n)*b') # No ReDoS.
 re.compile(r'(?:.|\n)*b', re.DOTALL) # Has ReDoS.
+
+# minimal example constructed by @erik-krogh
+baz = re.compile(r'\+0')
+
+# exerpts from LGTM.com
+re.compile(r'\+0x')
+re.compile(r'\+0x.*')
+re.compile(r'+\-0+\.')
+re.compile('\s+\+0x[0-9]+')
+re.compile(r'\+0000 .*')
+re.compile('\#[0-9]+ 0x[0-9]')