try to find more places where xmlCanonicPath() must be used to convert

* DOCBparser.c SAX.c catalog.c debugXML.c parser.c: try to find
  more places where xmlCanonicPath() must be used to convert
  filenames to URLs, trying to fix #111088
Daniel
diff --git a/parser.c b/parser.c
index 728b5bd..c1ce81e 100644
--- a/parser.c
+++ b/parser.c
@@ -9543,7 +9543,7 @@
     xmlSwitchEncoding(ctxt, enc);
 
     if (input->filename == NULL)
-	input->filename = (char *) xmlStrdup(SystemID);
+	input->filename = (char *) xmlCanonicPath(SystemID);
     input->line = 1;
     input->col = 1;
     input->base = ctxt->input->cur;
@@ -10681,7 +10681,7 @@
   
     xmlClearParserCtxt(ctxt);
     if (filename != NULL)
-        input->filename = xmlMemStrdup(filename);
+        input->filename = xmlCanonicPath(filename);
     input->base = buffer;
     input->cur = buffer;
     input->end = &buffer[xmlStrlen(buffer)];