[productivity] server test launch config and generate task

Bug: https://github.com/dart-lang/sdk/issues/60070
Change-Id: Ia7dea87b6b2ac3c74745bb81807fe7347f1a552a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/408340
Reviewed-by: Keerti Parthasarathy <keertip@google.com>
Commit-Queue: Phil Quitslund <pquitslund@google.com>

pkg/analysis_server/.gitignore

@@ -0,0 +1,2 @@
+# Include the vscode directory so we can share launch and task configs.
+!.vscode

pkg/analysis_server/.vscode/launch.json

@@ -0,0 +1,11 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "test: all",
+            "request": "launch",
+            "type": "dart",
+            "program": "test/test_all.dart",
+        }
+    ]
+}

pkg/analysis_server/.vscode/tasks.json

@@ -0,0 +1,11 @@
+{
+	"version": "2.0.0",
+	"tasks": [
+		{
+			"label": "generate files",
+			"type": "shell",
+			"command": "tool/spec/generate_files",
+			"problemMatcher": []
+		}
+	]
+}

pkg/linter/.gitignore

@@ -0,0 +1,2 @@
+# Include the vscode directory so we can share launch and task configs.
+!.vscode

pkg/linter/.vscode/launch.json

@@ -0,0 +1,11 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "test: all",
+            "request": "launch",
+            "type": "dart",
+            "program": "test/all.dart",
+        }
+    ]
+}