#225 use replaceRepeated() instead of replaceAll() to substitute the

variables

-  now returns `{v2*v2+v2&,{v1->#1,v2->1+v1}}` for the example App

symja_android_library/matheclipse-core/src/main/java/org/matheclipse/core/reflection/system/OptimizeExpression.java

@@ -98,12 +98,10 @@ public IASTMutable apply(IASTMutable t) {
    */
   private static class ShareReplaceAll extends VisitorExpr {
     final Function<IASTMutable, IASTMutable> fFunction;
-    public int fCounter;
 
     public ShareReplaceAll(Function<IASTMutable, IASTMutable> function) {
       super();
       this.fFunction = function;
-      this.fCounter = 0;
     }
 
     @Override
@@ -113,7 +111,6 @@ public IExpr visit(IASTMutable ast) {
       }
       IExpr temp = fFunction.apply(ast);
       if (temp.isPresent()) {
-        fCounter++;
         return temp;
       }
       return visitAST(ast);
@@ -187,7 +184,7 @@ private static IExpr optimizeExpression(final IASTMutable ast) {
         variableSubstitutions.append(F.Rule(reference, dummyVariable));
         varCounter++;
       }
-      sharedExpr = sharedExpr.replaceAll(variableSubstitutions);
+      sharedExpr = sharedExpr.replaceRepeated(variableSubstitutions);
       if (sharedExpr.isPresent()) {
         return F.List(sharedExpr, replaceList);
       }