feat: export old Node type

Author: MilesCranmer

src/DynamicExpressions.jl

@@ -37,10 +37,14 @@ import .ValueInterfaceModule:
     unpack_scalar_constants,
     ValueInterface
 @reexport import .NodeModule:
+    AbstractNode,
     AbstractNNode,
+    AbstractExpressionNode,
     AbstractExpressionNNode,
-    GraphNNode,
     NNode,
+    Node,
+    GraphNNode,
+    GraphNode,
     copy_node,
     set_node!,
     tree_mapreduce,
@@ -98,7 +102,8 @@ import .ExpressionModule:
 import .ExpressionAlgebraModule: declare_operator_alias
 @reexport import .ParseModule: @parse_expression, parse_expression
 import .ParseModule: parse_leaf
-@reexport import .ParametricExpressionModule: ParametricExpression, ParametricNNode
+@reexport import .ParametricExpressionModule:
+    ParametricExpression, ParametricNNode, ParametricNode
 import .ReadOnlyNodeModule: ReadOnlyNode
 @reexport import .StructuredExpressionModule: StructuredExpression
 import .StructuredExpressionModule: AbstractStructuredExpression