dart2js: Use the correct hashes for deferred code in the startup-emitter.

pkg/compiler/lib/src/js_emitter/code_emitter_task.dart

Index: pkg/compiler/lib/src/js_emitter/code_emitter_task.dart
diff --git a/pkg/compiler/lib/src/js_emitter/code_emitter_task.dart b/pkg/compiler/lib/src/js_emitter/code_emitter_task.dart
index 4c4466694e85044d95936ee966baa24b3b566ed8..b069aaf3a854d08411e19337db4871b241e6c0f5 100644
--- a/pkg/compiler/lib/src/js_emitter/code_emitter_task.dart
+++ b/pkg/compiler/lib/src/js_emitter/code_emitter_task.dart
@@ -43,7 +43,8 @@ class CodeEmitterTask extends CompilerTask {
     if (USE_LAZY_EMITTER) {
       emitter = new lazy_js_emitter.Emitter(compiler, namer, nativeEmitter);
     } else if (USE_STARTUP_EMITTER) {
-      emitter = new startup_js_emitter.Emitter(compiler, namer, nativeEmitter);
+      emitter = new startup_js_emitter.Emitter(
+          compiler, namer, nativeEmitter, generateSourceMap);
     } else {
       emitter =
           new full_js_emitter.Emitter(compiler, namer, generateSourceMap, this);