removed marker from PAccumulate

Author: tomasstupka

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ItertoolsModuleBuiltins.java

@@ -151,7 +151,7 @@ private PAccumulate create(VirtualFrame frame, Object cls, Object iterable, Obje
             PAccumulate self = factory().createAccumulate(cls);
             self.setIterable(getIter.execute(frame, iterable));
             self.setFunc(func instanceof PNone ? null : func);
-            self.setTotal(PAccumulate.MARKER);
+            self.setTotal(null);
             self.setInitial(initial instanceof PNone ? null : initial);
             return self;
         }

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/itertools/AccumulateBuiltins.java

@@ -106,7 +106,7 @@ Object next(VirtualFrame frame, PAccumulate self,
                 return self.getTotal();
             }
             Object value = nextNode.execute(frame, self.getIterable(), PNone.NO_VALUE);
-            if (self.getTotal() == PAccumulate.MARKER) {
+            if (self.getTotal() == null) {
                 markerProfile.enter();
                 self.setTotal(value);
                 return value;
@@ -161,7 +161,7 @@ Object reduce(VirtualFrame frame, PAccumulate self,
                 Object func = self.getFunc() != null ? self.getFunc() : PNone.NONE;
                 PTuple tuple = factory().createTuple(new Object[]{self.getIterable(), func});
 
-                Object total = self.getTotal() != PAccumulate.MARKER || self.getTotal() != null ? self.getTotal() : PNone.NONE;
+                Object total = self.getTotal() != null ? self.getTotal() : PNone.NONE;
                 return factory().createTuple(new Object[]{type, tuple, total});
             }
         }

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/itertools/PAccumulate.java

@@ -45,8 +45,6 @@
 
 public final class PAccumulate extends PythonBuiltinObject {
 
-    public static final Object MARKER = new Object();
-
     private Object iterable;
     private Object func;
     private Object total;
@@ -77,11 +75,6 @@ public Object getTotal() {
     }
 
     public void setTotal(Object total) {
-// if(total == null) {
-// System.out.println("+++++++++++++++++++++++++++++++++++++++++++++");
-// new Exception().printStackTrace();
-// }
-// System.out.println("+++ SET TOTAL " + total);
         this.total = total;
     }