Fix some problems found by the new qfcc.

With this, ruamoko/lib almost compiles (though no object files are output).
Just some bogus "redeclared" errors and an improperly implemented
statement that produces an ice.

ruamoko/lib/ListNode.r

@@ -45,6 +45,7 @@
 
 	data = [anObject retain];
 	nextNode = nil;
+	return self;
 }
 
 - (void) dealloc

ruamoko/lib/PropertyList.r

@@ -77,7 +77,7 @@
 	return self;
 }
 
--dealloc
+- (void) dealloc
 {
 	if (own)
 		PL_Free (item);

ruamoko/lib/Stack.r

@@ -73,7 +73,7 @@
 
 - (integer) count
 {
-
+	return stackSize;
 }
 
 @end