Move md workspace symbol search to language service (#154874)

* Move md workspace symbol search to language service

Also implements more of IWorkspace for the server

* Revert extra change

extensions/markdown-language-features/server/.vscode/launch.json

@@ -6,26 +6,7 @@
 			"name": "Attach",
 			"type": "node",
 			"request": "attach",
-			"port": 6044,
-			"protocol": "inspector",
-			"sourceMaps": true,
-			"outFiles": ["${workspaceFolder}/out/**/*.js"]
-		},
-		{
-			"name": "Unit Tests",
-			"type": "node",
-			"request": "launch",
-			"program": "${workspaceFolder}/../../../node_modules/mocha/bin/_mocha",
-			"stopOnEntry": false,
-			"args": [
-				"--timeout",
-				"999999",
-				"--colors"
-			],
-			"cwd": "${workspaceFolder}",
-			"runtimeExecutable": null,
-			"runtimeArgs": [],
-			"env": {},
+			"port": 7675,
 			"sourceMaps": true,
 			"outFiles": ["${workspaceFolder}/out/**/*.js"]
 		}

extensions/markdown-language-features/server/.vscode/tasks.json

@@ -1,9 +1,27 @@
 {
-	"version": "0.1.0",
+	"version": "2.0.0",
 	"command": "npm",
-	"isShellCommand": true,
-	"showOutput": "silent",
-	"args": ["run", "watch"],
-	"isWatching": true,
-	"problemMatcher": "$tsc-watch"
+	"args": [
+		"run",
+		"watch"
+	],
+	"isBackground": true,
+	"problemMatcher": "$tsc-watch",
+	"tasks": [
+		{
+			"label": "npm",
+			"type": "shell",
+			"command": "npm",
+			"args": [
+				"run",
+				"watch"
+			],
+			"isBackground": true,
+			"problemMatcher": "$tsc-watch",
+			"group": {
+				"_id": "build",
+				"isDefault": false
+			}
+		}
+	]
 }