Python3: Fix, wasn't properly indicating if range() built-in might ra…

…ise.

nuitka/nodes/BuiltinRangeNodes.py

@@ -84,12 +84,36 @@ def mayHaveSideEffects(self):
 
         return False
 
+    def mayRaiseException(self, exception_type):
+        for child in self.getVisitableNodes():
+            if child.mayRaiseException(exception_type):
+                return True
+
+            # TODO: Should take exception_type value into account here.
+            if child.getIntegerValue() is None:
+                return True
+
+            if python_version >= 270 and \
+               child.isExpressionConstantRef() and \
+               type(child.getConstant()) is float:
+                return True
+
+        step = self.getStep()
+
+        # A step of 0 will raise.
+        if step is not None and child.getIntegerValue() == 0:
+            return True
+
+        return False
+
     def computeBuiltinSpec(self, constraint_collection, given_values):
         assert self.builtin_spec is not None, self
 
         if not self.builtin_spec.isCompileTimeComputable(given_values):
             constraint_collection.onExceptionRaiseExit(BaseException)
 
+            # TODO: Raise exception known step 0.
+
             return self, None, None
 
         return constraint_collection.getCompileTimeComputationResult(