Add lsp code action ui sample

lsp-user-input-sample/server/.eslintrc.json

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+{
+	"extends": "../.eslintrc.base.json",
+	"rules": {
+		"no-console": "error"
+	}
+}

lsp-user-input-sample/server/package-lock.json

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+{
+	"name": "server",
+	"version": "1.0.0",
+	"lockfileVersion": 1,
+	"requires": true,
+	"dependencies": {
+		"vscode-jsonrpc": {
+			"version": "5.0.0-next.4",
+			"resolved": "https://registry.npmjs.org/vscode-jsonrpc/-/vscode-jsonrpc-5.0.0-next.4.tgz",
+			"integrity": "sha512-Tos3tXP62ZTB9WowWwhvfVNdu1mEwQF/j7DqJuVL4QKhk311gH+mda0PZpG95LWyh5CCRpHMns4vNmMgZQrvXQ=="
+		},
+		"vscode-languageserver": {
+			"version": "6.0.0-next.5",
+			"resolved": "https://registry.npmjs.org/vscode-languageserver/-/vscode-languageserver-6.0.0-next.5.tgz",
+			"integrity": "sha512-KMEyRR/cEhgPym7k3MOn7GUz70TjRYDcmvVIKJlmfknBEIrDU1GgI2DK0zasjfKdMGJWbLyU/rLfXJe46rynlw==",
+			"requires": {
+				"vscode-languageserver-protocol": "^3.15.0-next.11"
+			}
+		},
+		"vscode-languageserver-protocol": {
+			"version": "3.15.0-next.11",
+			"resolved": "https://registry.npmjs.org/vscode-languageserver-protocol/-/vscode-languageserver-protocol-3.15.0-next.11.tgz",
+			"integrity": "sha512-tpRnPtyS6q0EYH5RH12AtdMecgu3HVL2bBdBGzeQRN8Tf93I9LY4Fl5TXUNkIBjuxjMshkCM8ikhb+hlnWvB2w==",
+			"requires": {
+				"vscode-jsonrpc": "^5.0.0-next.3",
+				"vscode-languageserver-types": "^3.15.0-next.7"
+			}
+		},
+		"vscode-languageserver-textdocument": {
+			"version": "1.0.0-next.5",
+			"resolved": "https://registry.npmjs.org/vscode-languageserver-textdocument/-/vscode-languageserver-textdocument-1.0.0-next.5.tgz",
+			"integrity": "sha512-1jp/zAidN/bF/sqPimhBX1orH5G4rzRw63k75TesukJDuxm8yW79ECStWbDSy41BHGOwSGN4M69QFvhancSr5A=="
+		},
+		"vscode-languageserver-types": {
+			"version": "3.15.0-next.8",
+			"resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.15.0-next.8.tgz",
+			"integrity": "sha512-AEfWrSNyeamWMKPehh/kd3nBnKD9ZGCPhzfxMnW9YNqElSh28G2+Puk3knIQWyaWyV6Bzh28ok9BRJsPzXFCkQ=="
+		},
+		"vscode-uri": {
+			"version": "2.0.3",
+			"resolved": "https://registry.npmjs.org/vscode-uri/-/vscode-uri-2.0.3.tgz",
+			"integrity": "sha512-4D3DI3F4uRy09WNtDGD93H9q034OHImxiIcSq664Hq1Y1AScehlP3qqZyTkX/RWxeu0MRMHGkrxYqm2qlDF/aw=="
+		}
+	}
+}

lsp-user-input-sample/server/package.json

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+{
+	"name": "server",
+	"version": "1.0.0",
+	"private": true,
+	"author": "Microsoft Corporation",
+	"license": "MIT",
+	"repository": {
+		"type": "git",
+		"url": "https://github.com/Microsoft/vscode-extension-samples.git"
+	},
+	"bugs": {
+		"url": "https://github.com/Microsoft/vscode-extension-samples/issues"
+	},
+	"engines": {
+		"node": "*"
+	},
+	"dependencies": {
+		"vscode-uri": "^2.0.3",
+		"vscode-languageserver": "6.0.0-next.5",
+		"vscode-languageserver-textdocument": "1.0.0-next.5"
+	}
+}

lsp-user-input-sample/server/src/sampleServer.ts

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+/* --------------------------------------------------------------------------------------------
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License. See License.txt in the project root for license information.
+ * ------------------------------------------------------------------------------------------ */
+'use strict';
+
+import {
+	CodeAction, CodeActionKind, Command, createConnection, Diagnostic, DiagnosticSeverity, Position, Range, TextDocumentEdit,
+	TextDocuments, TextDocumentSyncKind, TextEdit
+} from 'vscode-languageserver';
+import { TextDocument } from 'vscode-languageserver-textdocument';
+
+const connection = createConnection();
+connection.console.info(`Sample server running in node ${process.version}`);
+
+const documents: TextDocuments<TextDocument> = new TextDocuments(TextDocument);
+documents.listen(connection);
+
+connection.onInitialize(() => {
+	return {
+		capabilities: {
+			codeActionProvider: true,
+			textDocumentSync: {
+				openClose: true,
+				change: TextDocumentSyncKind.Incremental
+			},
+			executeCommandProvider: {
+				commands: ['sample.fixMe']
+			}
+		}
+	};
+});
+
+function validate(document: TextDocument): void {
+	connection.sendDiagnostics({
+		uri: document.uri,
+		version: document.version,
+		diagnostics: [
+			Diagnostic.create(Range.create(0,0,0, 10), 'Something is wrong here', DiagnosticSeverity.Warning)
+		]
+	});
+}
+
+documents.onDidOpen((event) => {
+	validate(event.document);
+});
+
+documents.onDidChangeContent((event) => {
+	validate(event.document);
+});
+
+connection.onCodeAction((params) => {
+	const textDocument = documents.get(params.textDocument.uri);
+	if (textDocument === undefined) {
+		return undefined;
+	}
+	const title = 'With User Input';
+	return [CodeAction.create(title, Command.create(title, 'sample.fixMe', textDocument.uri), CodeActionKind.QuickFix)];
+});
+
+connection.onExecuteCommand(async (params) => {
+	if (params.command !== 'sample.fixMe' || params.arguments ===  undefined) {
+		return;
+	}
+
+	const textDocument = documents.get(params.arguments[0]);
+	if (textDocument === undefined) {
+		return;
+	}
+	const newText = typeof params.arguments[1] === 'string' ? params.arguments[1] : 'Eclipse';
+	connection.workspace.applyEdit({
+		documentChanges: [
+			TextDocumentEdit.create({ uri: textDocument.uri, version: textDocument.version }, [
+				TextEdit.insert(Position.create(0, 0), newText)
+			])
+		]
+	});
+});
+
+connection.listen();

lsp-user-input-sample/server/tsconfig.json

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+{
+	"extends": "../tsconfig.base.json",
+	"compilerOptions": {
+		"target": "es2017",
+		"module": "commonjs",
+		"moduleResolution": "node",
+		"sourceMap": true,
+		"outDir": "out",
+		"rootDir": "src",
+		"lib": [ "es2017" ]
+	},
+	"include": [
+		"src"
+	],
+	"exclude": [
+		"node_modules"
+	]
+}

lsp-user-input-sample/server/webpack.config.js

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+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+//@ts-check
+
+'use strict';
+
+const withDefaults = require('../shared.webpack.config');
+const path = require('path');
+
+module.exports = withDefaults({
+	context: path.join(__dirname),
+	entry: {
+		extension: './src/eslintServer.ts',
+	},
+	output: {
+		filename: 'eslintServer.js',
+		path: path.join(__dirname, 'out')
+	}
+});