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/test/unit/fullJsonStreamReporter.js

@@ -0,0 +1,52 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+const { constants } = require('mocha/lib/runner');
+const BaseRunner = require('mocha/lib/reporters/base');
+
+const {
+	EVENT_TEST_PASS,
+	EVENT_TEST_FAIL,
+	EVENT_RUN_BEGIN,
+	EVENT_RUN_END,
+} = constants;
+
+/**
+ * Similar to the mocha JSON stream, but includes additional information
+ * on failure. Specifically, the mocha json-stream does not include unmangled
+ * expected versus actual results.
+ *
+ * Writes a superset of the data that json-stream normally would.
+ */
+module.exports = class FullJsonStreamReporter extends BaseRunner {
+	constructor(runner, options) {
+		super(runner, options);
+
+		const total = runner.total;
+		runner.once(EVENT_RUN_BEGIN, () => writeEvent(['start', { total }]));
+		runner.once(EVENT_RUN_END, () => writeEvent(['end', this.stats]));
+
+		runner.on(EVENT_TEST_PASS, test => writeEvent(['pass', clean(test)]));
+		runner.on(EVENT_TEST_FAIL, (test, err) => {
+			test = clean(test);
+			test.actual = err.actual;
+			test.expected = err.expected;
+			test.err = err.message;
+			test.stack = err.stack || null;
+			writeEvent(['fail', test]);
+		});
+	}
+}
+
+function writeEvent(event) {
+	process.stdout.write(JSON.stringify(event) + '\n');
+}
+
+const clean = test => ({
+	title: test.title,
+	fullTitle: test.fullTitle(),
+	duration: test.duration,
+	currentRetry: test.currentRetry()
+});