Add pty host to build

lib/vscode/coder.js

@@ -14,11 +14,14 @@ const vscodeEntryPoints = _.flatten([
 	buildfile.workerExtensionHost,
 	buildfile.workerNotebook,
 	buildfile.keyboardMaps,
+	// See ./src/vs/workbench/buildfile.desktop.js
 	buildfile.entrypoint("vs/platform/files/node/watcher/unix/watcherApp"),
 	buildfile.entrypoint("vs/platform/files/node/watcher/nsfw/watcherApp"),
+	buildfile.entrypoint('vs/platform/terminal/node/ptyHostMain'),
 	buildfile.entrypoint("vs/workbench/services/extensions/node/extensionHostProcess"),
 ]);
 
+// See ./build/gulpfile.vscode.js
 const vscodeResources = [
 	"out-build/vs/server/fork.js",
 	"!out-build/vs/server/doc/**",