small changes to syntax to get rid of compiler warnings. No changes to

* error.c HTMLparser.c testC14N.c testHTML.c testURI.c
  xmlcatalog.c xmlmemory.c xmlreader.c xmlschemastypes.c
  python/libxml.c include/libxml/xmlmemory.h: small changes
  to syntax to get rid of compiler warnings.  No changes
  to logic.
diff --git a/HTMLparser.c b/HTMLparser.c
index d45eac2..0aa0041 100644
--- a/HTMLparser.c
+++ b/HTMLparser.c
@@ -4331,7 +4331,7 @@
  */
 static int
 htmlParseLookupSequence(htmlParserCtxtPtr ctxt, xmlChar first,
-                        xmlChar next, xmlChar third, int comment) {
+                        xmlChar next, xmlChar third, int iscomment) {
     int base, len;
     htmlParserInputPtr in;
     const xmlChar *buf;
@@ -4354,7 +4354,7 @@
     if (third) len -= 2;
     else if (next) len --;
     for (;base < len;base++) {
-	if (!incomment && (base + 4 < len) && !comment) {
+	if (!incomment && (base + 4 < len) && !iscomment) {
 	    if ((buf[base] == '<') && (buf[base + 1] == '!') &&
 		(buf[base + 2] == '-') && (buf[base + 3] == '-')) {
 		incomment = 1;