fix bad marked var in copy_att_var

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@439 b08c6af1-5177-4d33-ba66-4b1c6b8b522a

C/attvar.c

@@ -123,7 +123,7 @@ CopyAttVar(CELL *orig, CELL ***to_visit_ptr, CELL *res)
       to_visit[2] = newv->Atts+2*j+1;
       to_visit[3] = (CELL *)(attv->Atts[2*j]);
       /* fool the system into thinking we had a variable there */
-      attv->Atts[2*j] = AbsAppl(H);
+      attv->Atts[2*j+1] = AbsAppl(H);
       to_visit += 4;
 #else
       to_visit[0] = attv->Atts+2*j;

C/heapgc.c

@@ -2651,6 +2651,11 @@ do_gc(Int predarity, CELL *current_env, yamop *nextop)
   Int           effectiveness = 0;
   int           gc_trace = FALSE;
 
+#if COROUTINING
+  if (H0 - (CELL *)ReadTimedVar(DelayedVars) < 1024+(2*NUM_OF_ATTS)) {
+    growglobal();
+  }
+#endif
 #ifdef INSTRUMENT_GC
   {
     int i;