chore(vscode): update to 1.53.2

These conflicts will be resolved in the following commits. We do it this way so
that PR review is possible.

lib/vscode/extensions/emmet/src/typings/EmmetFlatNode.d.ts

@@ -0,0 +1,89 @@
+/*---------------------------------------------------------------------------------------------
+*  Copyright (c) Microsoft Corporation. All rights reserved.
+*  Licensed under the MIT License. See License.txt in the project root for license information.
+*--------------------------------------------------------------------------------------------*/
+
+declare module 'EmmetFlatNode' {
+    export interface Node {
+        start: number
+        end: number
+        type: string
+        parent: Node | undefined
+        firstChild: Node | undefined
+        nextSibling: Node | undefined
+        previousSibling: Node | undefined
+        children: Node[]
+    }
+
+    export interface Token {
+        start: number
+        end: number
+        stream: BufferStream
+        toString(): string
+    }
+
+    export interface CssToken extends Token {
+        size: number
+        item(number: number): any
+        type: string
+    }
+
+    export interface HtmlToken extends Token {
+        value: string
+    }
+
+    export interface Attribute extends Token {
+        name: Token
+        value: Token
+    }
+
+    export interface HtmlNode extends Node {
+        name: string
+        open: Token | undefined
+        close: Token | undefined
+        parent: HtmlNode | undefined
+        firstChild: HtmlNode | undefined
+        nextSibling: HtmlNode | undefined
+        previousSibling: HtmlNode | undefined
+        children: HtmlNode[]
+        attributes: Attribute[]
+    }
+
+    export interface CssNode extends Node {
+        name: string
+        parent: CssNode | undefined
+        firstChild: CssNode | undefined
+        nextSibling: CssNode | undefined
+        previousSibling: CssNode | undefined
+        children: CssNode[]
+    }
+
+    export interface Rule extends CssNode {
+        selectorToken: Token
+        contentStartToken: Token
+        contentEndToken: Token
+    }
+
+    export interface Property extends CssNode {
+        valueToken: Token
+        separator: string
+        parent: Rule
+        terminatorToken: Token
+        separatorToken: Token
+        value: string
+    }
+
+    export interface Stylesheet extends Node {
+        comments: Token[]
+    }
+
+    export interface BufferStream {
+        peek(): number
+        next(): number
+        backUp(n: number): number
+        current(): string
+        substring(from: number, to: number): string
+        eat(match: any): boolean
+        eatWhile(match: any): boolean
+    }
+}

lib/vscode/extensions/emmet/src/typings/emmetio__css-parser.d.ts

@@ -5,8 +5,10 @@
 
 declare module '@emmetio/css-parser' {
 	import { BufferStream, Stylesheet } from 'EmmetNode';
+	import { Stylesheet as FlatStylesheet } from 'EmmetFlatNode';
 
 	function parseStylesheet(stream: BufferStream): Stylesheet;
+	function parseStylesheet(stream: string): FlatStylesheet;
 
 	export default parseStylesheet;
 }

lib/vscode/extensions/emmet/src/typings/emmetio__html-matcher.d.ts

@@ -5,8 +5,10 @@
 
 declare module '@emmetio/html-matcher' {
 	import { BufferStream, HtmlNode } from 'EmmetNode';
+	import { HtmlNode as HtmlFlatNode } from 'EmmetFlatNode';
 
 	function parse(stream: BufferStream): HtmlNode;
+	function parse(stream: string): HtmlFlatNode;
 
 	export default parse;
 }