Create LookupMapAnalysis late.

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

Index: pkg/compiler/lib/src/js_backend/codegen_listener.dart
diff --git a/pkg/compiler/lib/src/js_backend/codegen_listener.dart b/pkg/compiler/lib/src/js_backend/codegen_listener.dart
index 2af6de7e2234d4a668e2426f95314ef3b565251c..8de2576f6b08f215dff7ae197a22dbfec32b87b7 100644
--- a/pkg/compiler/lib/src/js_backend/codegen_listener.dart
+++ b/pkg/compiler/lib/src/js_backend/codegen_listener.dart
@@ -173,6 +173,11 @@ class CodegenEnqueuerListener extends EnqueuerListener {
     return true;
   }
 
+  @override
+  void onQueueClosed() {
+    _lookupMapAnalysis.onQueueClosed();
+  }
+
   /// Adds the impact of [constant] to [impactBuilder].
   void _computeImpactForCompileTimeConstant(
       ConstantValue constant, WorldImpactBuilder impactBuilder) {
@@ -340,7 +345,9 @@ class CodegenEnqueuerListener extends EnqueuerListener {
     return _processClass(cls);
   }
 
+  @override
   void logSummary(void log(String message)) {
+    _lookupMapAnalysis.logSummary(log);
     _nativeEnqueuer.logSummary(log);
   }
 }