public void changeEdgeNode(EdgeDirection direction, StatEdge edge, Statement value) {
    if (direction == EdgeDirection.BACKWARD) {
      edge.setSource(value);
    }
    else {
      edge.setDestination(value);
    }
  }
Gets the implicitly defined variables in this statement.

@return A list of {@link VarExprent}s that are implicitly defined. Can be null or empty if none exist.
src/org/jetbrains/java/decompiler/modules/decompiler/stats/Statement.java