Fix for the compilation error.

pkg/front_end/lib/src/incremental_kernel_generator_impl.dart

Index: pkg/front_end/lib/src/incremental_kernel_generator_impl.dart
diff --git a/pkg/front_end/lib/src/incremental_kernel_generator_impl.dart b/pkg/front_end/lib/src/incremental_kernel_generator_impl.dart
index 93bf43d184f693fa9f47b2ce970a2c263de1d8c7..59f12c6310a5fe55fcffa5e08fe81d745c9d880f 100644
--- a/pkg/front_end/lib/src/incremental_kernel_generator_impl.dart
+++ b/pkg/front_end/lib/src/incremental_kernel_generator_impl.dart
@@ -240,7 +240,7 @@ class IncrementalKernelGeneratorImpl implements IncrementalKernelGenerator {
               dillTarget.loader.read(export.library.uri);
           if (exportedLibrary != null) {
             exportedLibrary.exports.forEach((name, member) {
-              if (export.filter(name) &&
+              if (export.isExposed(name) &&
                   library.addToExportScope(name, member)) {
                 wasChanged = true;
               }