Add language service tests for this predicates
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95
tests/cases/fourslash/thisPredicateFunctions.ts
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95
tests/cases/fourslash/thisPredicateFunctions.ts
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/// <reference path="fourslash.ts" />
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//// class RoyalGuard {
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//// isLeader(): this is LeadGuard {
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//// return this instanceof LeadGuard;
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//// }
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//// isFollower(): this is FollowerGuard {
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//// return this instanceof FollowerGuard;
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//// }
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//// }
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////
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//// class LeadGuard extends RoyalGuard {
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//// lead(): void {};
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//// }
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////
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//// class FollowerGuard extends RoyalGuard {
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//// follow(): void {};
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//// }
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////
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//// let a: RoyalGuard = new FollowerGuard();
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//// if (a.is/*1*/Leader()) {
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//// a./*2*/;
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//// }
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//// else if (a.is/*3*/Follower()) {
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//// a./*4*/;
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//// }
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////
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//// interface GuardInterface {
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//// isLeader(): this is LeadGuard;
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//// isFollower(): this is FollowerGuard;
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//// }
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////
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//// let b: GuardInterface;
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//// if (b.is/*5*/Leader()) {
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//// b./*6*/;
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//// }
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//// else if (b.is/*7*/Follower()) {
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//// b./*8*/;
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//// }
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////
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//// if (((a.isLeader)())) {
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//// a./*9*/;
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//// }
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//// else if (((a).isFollower())) {
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//// a./*10*/;
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//// }
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////
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//// if (((a["isLeader"])())) {
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//// a./*11*/;
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//// }
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//// else if (((a)["isFollower"]())) {
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//// a./*12*/;
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//// }
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////
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//// let leader/*13*/Status = a.isLeader();
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//// function isLeaderGuard(g: RoyalGuard) {
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//// return g.isLeader();
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//// }
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//// let checked/*14*/LeaderStatus = isLeader/*15*/Guard(a);
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goTo.marker("1");
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verify.quickInfoIs("(method) RoyalGuard.isLeader(): this is LeadGuard");
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goTo.marker("2");
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verify.completionListContains("lead");
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goTo.marker("3");
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verify.quickInfoIs("(method) RoyalGuard.isFollower(): this is FollowerGuard");
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goTo.marker("4");
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verify.completionListContains("follow");
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goTo.marker("5");
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verify.quickInfoIs("(method) GuardInterface.isLeader(): this is LeadGuard");
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goTo.marker("6");
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verify.completionListContains("lead");
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goTo.marker("7");
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verify.quickInfoIs("(method) GuardInterface.isFollower(): this is FollowerGuard");
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goTo.marker("8");
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verify.completionListContains("follow");
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goTo.marker("9");
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verify.completionListContains("lead");
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goTo.marker("10");
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verify.completionListContains("follow");
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goTo.marker("11");
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verify.completionListContains("lead");
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goTo.marker("12");
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verify.completionListContains("follow");
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goTo.marker("13");
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verify.quickInfoIs("let leaderStatus: boolean");
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goTo.marker("14");
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verify.quickInfoIs("let checkedLeaderStatus: boolean");
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goTo.marker("15");
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verify.quickInfoIs("function isLeaderGuard(g: RoyalGuard): boolean");
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137
tests/cases/fourslash/thisPredicateMembers.ts
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137
tests/cases/fourslash/thisPredicateMembers.ts
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/// <reference path="fourslash.ts" />
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//// class FileSystemObject {
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//// get is/*1*/File(): this is Item {
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//// return this instanceof Item;
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//// }
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//// set is/*2*/File(param) {
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//// // noop
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//// }
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//// get is/*3*/Directory(): this is Directory {
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//// return this instanceof Directory;
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//// }
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//// is/*4*/Networked: this is (Networked & this);
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//// constructor(public path: string) {}
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//// }
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////
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//// class Item extends FileSystemObject {
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//// constructor(path: string, public content: string) { super(path); }
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//// }
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//// class Directory extends FileSystemObject {
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//// children: FileSystemObject[];
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//// }
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//// interface Networked {
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//// host: string;
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//// }
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////
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//// interface Sundries {
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//// broken: boolean;
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//// }
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////
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//// interface Supplies {
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//// spoiled: boolean;
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//// }
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////
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//// interface Crate<T> {
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//// contents: T;
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//// is/*5*/Sundries: this is Crate<Sundries>;
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//// is/*6*/Supplies: this is Crate<Supplies>;
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//// is/*7*/PackedTight: this is (this & {extraContents: T});
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//// }
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////
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//// const obj: FileSystemObject = new Item("/foo", "");
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//// if (obj.is/*8*/File) {
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//// obj./*9*/;
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//// if (obj.is/*10*/Networked) {
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//// obj./*11*/;
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//// }
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//// }
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//// if (obj.is/*12*/Directory) {
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//// obj./*13*/;
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//// if (obj.is/*14*/Networked) {
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//// obj./*15*/;
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//// }
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//// }
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//// if (obj.is/*16*/Networked) {
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//// obj./*17*/;
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//// }
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////
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//// const crate: Crate<any>;
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//// if (crate.is/*18*/PackedTight) {
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//// crate./*19*/;
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//// }
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//// if (crate.is/*20*/Sundries) {
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//// crate.contents./*21*/;
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//// if (crate.is/*22*/PackedTight) {
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//// crate./*23*/
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//// }
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//// }
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//// if (crate.is/*24*/Supplies) {
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//// crate.contents./*25*/;
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//// if (crate.is/*26*/PackedTight) {
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//// crate./*27*/
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//// }
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//// }
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goTo.marker("1");
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verify.quickInfoIs("(property) FileSystemObject.isFile: this is Item");
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goTo.marker("2");
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verify.quickInfoIs("(property) FileSystemObject.isFile: this is Item");
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goTo.marker("3");
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verify.quickInfoIs("(property) FileSystemObject.isDirectory: this is Directory");
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goTo.marker("4");
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verify.quickInfoIs("(property) FileSystemObject.isNetworked: this is Networked & this");
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goTo.marker("5");
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verify.quickInfoIs("(property) Crate<T>.isSundries: this is Crate<Sundries>");
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goTo.marker("6");
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verify.quickInfoIs("(property) Crate<T>.isSupplies: this is Crate<Supplies>");
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goTo.marker("7");
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verify.quickInfoIs(`(property) Crate<T>.isPackedTight: this is this & {
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extraContents: T;
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}`);
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goTo.marker("8");
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verify.quickInfoIs("(property) FileSystemObject.isFile: this is Item");
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goTo.marker("9");
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verify.completionListContains("content");
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goTo.marker("10");
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verify.quickInfoIs("(property) FileSystemObject.isNetworked: this is Networked & Item");
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goTo.marker("11");
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verify.completionListContains("host");
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goTo.marker("12");
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verify.quickInfoIs("(property) FileSystemObject.isDirectory: this is Directory");
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goTo.marker("13");
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verify.completionListContains("children");
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goTo.marker("14");
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verify.quickInfoIs("(property) FileSystemObject.isNetworked: this is Networked & Directory");
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goTo.marker("15");
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verify.completionListContains("host");
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goTo.marker("16");
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verify.quickInfoIs("(property) FileSystemObject.isNetworked: this is Networked & FileSystemObject");
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goTo.marker("17");
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verify.completionListContains("host");
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goTo.marker("18");
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verify.quickInfoIs(`(property) Crate<any>.isPackedTight: this is Crate<any> & {
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extraContents: any;
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}`);
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goTo.marker("19");
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verify.completionListContains("extraContents");
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goTo.marker("20");
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verify.quickInfoIs("(property) Crate<any>.isSundries: this is Crate<Sundries>");
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goTo.marker("21");
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verify.completionListContains("broken");
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goTo.marker("22");
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verify.quickInfoIs(`(property) Crate<Sundries>.isPackedTight: this is Crate<Sundries> & {
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extraContents: Sundries;
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}`);
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goTo.marker("23");
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verify.completionListContains("extraContents");
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goTo.marker("24");
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verify.quickInfoIs("(property) Crate<any>.isSupplies: this is Crate<Supplies>");
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goTo.marker("25");
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verify.completionListContains("spoiled");
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goTo.marker("26");
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verify.quickInfoIs(`(property) Crate<Supplies>.isPackedTight: this is Crate<Supplies> & {
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extraContents: Supplies;
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}`);
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goTo.marker("27");
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verify.completionListContains("extraContents");
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