code: Node createSingleConstNameDeclaration(String variableName, Node value) {
      return IR.constNode(createName(variableName, value.getJSType()), value);
    }
docs: Creates a new `const` declaration statement for a single variable name.
  
  <p>Takes the type for the variable name from the value node.
  
  <p>e.g. `const variableName = value;`