JBIDE-17194 org.jboss.tools.cdi.seam.core.test failure on Windows

offsets replaced by substrings
JBIDE-17196 org.jboss.tools.cdi.seam.text.ext.test failures on Windows

offsets replaced by substrings
JBIDE-17185 org.jboss.tools.cdi.core.test failures on Windows

Excluded exact offsets in asserts, because different line ends
for different OS.