NodeMaterial: Fix ExpressionNode contructor's type definition

Signed-off-by: martinRenou <[email protected]>

examples/jsm/nodes/core/ExpressionNode.d.ts

@@ -2,6 +2,6 @@ import { FunctionNode } from './FunctionNode';
 
 export class ExpressionNode extends FunctionNode {
 
-	constructor( src: string, includes?: object[], extensions?: object, keywords?: object, type?: string );
+	constructor( src: string, type?: string, keywords?: object, extensions?: object, includes?: object[] );
 
 }