Add support for debugging Jest inside the current file (#5717)

Author: orta

.vscode/launch.json

@@ -0,0 +1,15 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Debug Jest with current test file",
+      "program": "${workspaceFolder}/packages/jest-cli/bin/jest.js",
+      "args": ["--runInBand", "${file}"]
+    }
+  ]
+}

.vscode/tasks.json

@@ -0,0 +1,19 @@
+{
+  // See https://go.microsoft.com/fwlink/?LinkId=733558
+  // for the documentation about the tasks.json format
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "args": ["run", "watch"],
+      "command": "yarn",
+      "identifier": "watch",
+      "isBackground": true,
+      "type": "process",
+      "group": {
+        "kind": "build",
+        "isDefault": true
+      },
+      "label": "Babel Watcher"
+    }
+  ]
+}