Add top level type inference logic for integer literals.

pkg/analyzer/lib/src/summary/fasta/summary_builder.dart

Index: pkg/analyzer/lib/src/summary/fasta/summary_builder.dart
diff --git a/pkg/analyzer/lib/src/summary/fasta/summary_builder.dart b/pkg/analyzer/lib/src/summary/fasta/summary_builder.dart
index ec951f0a72f13b63c025ce51d15895968235ec91..4d5d8a6f667c9a9b5cd075ffd89ef834a57788fb 100644
--- a/pkg/analyzer/lib/src/summary/fasta/summary_builder.dart
+++ b/pkg/analyzer/lib/src/summary/fasta/summary_builder.dart
@@ -980,7 +980,7 @@ class SummaryBuilder extends StackListener {
     // /* List<MetadataBuilder> metadata = */ pop();
   }
 
-  void endFieldInitializer(Token assignmentOperator) {
+  void endFieldInitializer(Token assignmentOperator, Token token) {
     debugEvent("FieldInitializer $typeSeen $assignmentOperator");
     // This is a variable initializer and it's ignored for now. May also be
     // constructor initializer.