Don’t exit prematurely if compilation failed.

dart/pkg/compiler/lib/src/js_backend/backend.dart

Index: dart/pkg/compiler/lib/src/js_backend/backend.dart
diff --git a/dart/pkg/compiler/lib/src/js_backend/backend.dart b/dart/pkg/compiler/lib/src/js_backend/backend.dart
index d57e9a2a3e6372a29f937e3a4f79c5f0e5aedfae..48544c30a2b70c18aa28b8c755fff358c8d5572e 100644
--- a/dart/pkg/compiler/lib/src/js_backend/backend.dart
+++ b/dart/pkg/compiler/lib/src/js_backend/backend.dart
@@ -1200,6 +1200,11 @@ class JavaScriptBackend extends Backend {
 
   void codegen(CodegenWorkItem work) {
     Element element = work.element;
+    if (compiler.elementHasCompileTimeError(element)) {
+      generatedCode[element] = jsAst.js(
+          "function () { throw new Error('Compile time error in $element') }");
+      return;
+    }
     var kind = element.kind;
     if (kind == ElementKind.TYPEDEF) return;
     if (element.isConstructor && element.enclosingClass == jsNullClass) {