fixed failing test

workstream:

types/tern/index.d.ts

@@ -13,4 +13,3 @@
 
 export * from "./lib/infer";
 export * from "./lib/tern";
-

types/tern/lib/infer/index.d.ts

@@ -193,7 +193,7 @@ export interface Constraint extends AVal {
 
 // #### Scopes ####
 interface ScopeConstructor {
-    new(parent?: Scope): Scope;
+    new(): Scope;
     new(parent: Scope, originNode: ESTree.Node): Scope;
 }
 export const Scope: ScopeConstructor;