better isElectron check

src/vs/workbench/parts/debug/node/debugAdapter.ts

@@ -325,7 +325,7 @@ export class DebugAdapter extends StreamDebugAdapter {
 
 			if (this.adapterExecutable.command === 'node') {
 				if (Array.isArray(this.adapterExecutable.args) && this.adapterExecutable.args.length > 0) {
-					const isElectron = typeof (process.versions.electron) === 'string';
+					const isElectron = process.env['ELECTRON_RUN_AS_NODE'] || process.versions['electron'];
 					const child = cp.fork(this.adapterExecutable.args[0], this.adapterExecutable.args.slice(1), {
 						execArgv: isElectron ? ['-e', 'delete process.env.ELECTRON_RUN_AS_NODE;require(process.argv[1])'] : [],
 						silent: true