chore: import upstream snapshot with attribution

scripts/test.bat

@@ -0,0 +1,31 @@
+@echo off
+setlocal
+
+set ELECTRON_RUN_AS_NODE=
+
+pushd %~dp0\..
+
+:: Get Code.exe location
+for /f "tokens=2 delims=:," %%a in ('findstr /R /C:"\"nameShort\":.*" product.json') do set NAMESHORT=%%~a
+set NAMESHORT=%NAMESHORT: "=%
+set NAMESHORT=%NAMESHORT:"=%.exe
+set CODE=".build\electron\%NAMESHORT%"
+
+:: Download Electron if needed
+call node build\lib\electron.js
+if %errorlevel% neq 0 node .\node_modules\gulp\bin\gulp.js electron
+
+:: Run tests
+set ELECTRON_ENABLE_LOGGING=1
+%CODE% .\test\unit\electron\index.js --crash-reporter-directory=%~dp0\..\.build\crashes %*
+
+popd
+
+endlocal
+
+:: app.exit(0) is exiting with code 255 in Electron 1.7.4.
+:: See https://github.com/microsoft/vscode/issues/28582
+echo errorlevel: %errorlevel%
+if %errorlevel% == 255 set errorlevel=0
+
+exit /b %errorlevel%