make "range" builtin a binary builtin

Author: lukasstadler

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/range/RangeBuiltins.java

@@ -81,7 +81,7 @@ int doPRange(PRange left) {
 
     @Builtin(name = __EQ__, fixedNumOfArguments = 2)
     @GenerateNodeFactory
-    abstract static class EqNode extends PythonBuiltinNode {
+    abstract static class EqNode extends PythonBinaryBuiltinNode {
         @Specialization
         boolean doPRange(PRange left, PRange right) {
             return left.equals(right);