--- /dev/null
+$HEAD
+<warning><eval line="2">'42'</eval></warning>
+1
+2
+3<warning>warning at $SCRIPT_NAME line 3.</warning>
+
+4<table border=1 class="PLPerror"><tr><td><b>Debug information:</b><br>$INCWARN at $SCRIPT_NAME line 4.
+</td></tr></table>
+5<table border=1 class="PLPerror"><tr><td><b>Debug information:</b><br>$INCWARN at $SCRIPT_NAME line 5.
+</td></tr></table>