Flush out support for ``class B(): pass`` syntax by adding support to the
'parser' module and 'compiler' package.

Closes patch #1176012.  Thanks logistix.
diff --git a/Modules/parsermodule.c b/Modules/parsermodule.c
index eb23b58..63b2cd7 100644
--- a/Modules/parsermodule.c
+++ b/Modules/parsermodule.c
@@ -947,7 +947,8 @@
 validate_class(node *tree)
 {
     int nch = NCH(tree);
-    int res = validate_ntype(tree, classdef) && ((nch == 4) || (nch == 7));
+    int res = (validate_ntype(tree, classdef) &&
+	       	((nch == 4) || (nch == 6) || (nch == 7)));
 
     if (res) {
         res = (validate_name(CHILD(tree, 0), "class")
@@ -955,12 +956,20 @@
                && validate_colon(CHILD(tree, nch - 2))
                && validate_suite(CHILD(tree, nch - 1)));
     }
-    else
+    else {
         (void) validate_numnodes(tree, 4, "class");
-    if (res && (nch == 7)) {
-        res = (validate_lparen(CHILD(tree, 2))
-               && validate_testlist(CHILD(tree, 3))
-               && validate_rparen(CHILD(tree, 4)));
+    }
+	
+    if (res) {
+	if (nch == 7) {
+		res = ((validate_lparen(CHILD(tree, 2)) &&
+			validate_testlist(CHILD(tree, 3)) &&
+			validate_rparen(CHILD(tree, 4))));
+	}
+	else if (nch == 6) {
+		res = (validate_lparen(CHILD(tree,2)) &&
+			validate_rparen(CHILD(tree,3)));
+	}
     }
     return (res);
 }