class_docstr: Gather variable that change in given node.
  
  It doesn't check constness as it is use for integer so we don't care about
  arguments effects as it is use by value.
docstr: Stored variable have new value. 
docstr_tok: ["Stored","variable","have","new","value","."]
code: def visit_Name(self, node):
      """Stored variable have new value."""
      if isinstance(node.ctx, ast.Store):
          self.result.append(node)
  
imports: from pythran.passmanager import NodeAnalysis
  import gast
label_desc: Use image node_id 2 for calling the IsAssigned obj's underlying member method code with example usage: obj.visit_Name(node) without return types