Remove Compiler access from ResolutionEnqueuer

pkg/dart2js_incremental/lib/caching_compiler.dart

Index: pkg/dart2js_incremental/lib/caching_compiler.dart
diff --git a/pkg/dart2js_incremental/lib/caching_compiler.dart b/pkg/dart2js_incremental/lib/caching_compiler.dart
index 8c6357fd5cd9c620dd765eaec0b2e151ee72b1f9..34f67c64fc824953f95fdd8b4850c04fe33d7fc9 100644
--- a/pkg/dart2js_incremental/lib/caching_compiler.dart
+++ b/pkg/dart2js_incremental/lib/caching_compiler.dart
@@ -84,7 +84,7 @@ Future<CompilerImpl> reuseCompiler(
       return compiler.libraryLoader.loadLibrary(core).then((_) {
         // Likewise, always be prepared for runtimeType support.
         // TODO(johnniwinther): Add global switch to force RTI.
-        compiler.enabledRuntimeType = true;
+        compiler.resolverWorld.hasRuntimeTypeSupport = true;
         backend.registerRuntimeType(compiler.enqueuer.resolution);
         return compiler;
       });