Inference casts to dynamic, fuzzy types handled

test/dart_codegen/expect/convert/json.dart

 part of dart.convert;
  class JsonUnsupportedObjectError extends Error {final unsupportedObject;
  final cause;
  JsonUnsupportedObjectError(this.unsupportedObject, {
   this.cause}
 );
  String toString() {
   if (cause != null) {
     return "Converting object to an encodable object failed.";
     }
@@ skipping 314 matching lines @@
  for (int i = 1; i < list.length; i++) {
 writeString(',');
  writeObject(list[i]);
 }
 }
  writeString(']');
 }
  void writeMap(Map<String, Object> map) {
 writeString('{');
  String separator = '"';
- map.forEach(((__x21) => DEVC$RT.cast(__x21, __t18, __t15, "InferableClosure", """line 721, column 17 of dart:convert/json.dart: """, __x21 is __t15, false))((String key, value) {
+ map.forEach((String key, value) {
 writeString(separator);
  separator = ',"';
  writeStringContent(key);
  writeString('":');
  writeObject(value);
 }
-));
+);
  writeString('}');
 }
 }
  abstract class _JsonPrettyPrintMixin implements _JsonStringifier {int _indentLevel = 0;
  void writeIndentation(indentLevel);
  void writeList(List list) {
 if (list.isEmpty) {
 writeString('[]');
 }
  else {
@@ skipping 186 matching lines @@
 for (int i = 0; i < indentLength; i++) {
 writeByte(indent[i]);
 }
 }
 }
 }
 }
  typedef Object __t6(Object __u7);
  typedef dynamic __t8(dynamic __u9);
  typedef dynamic __t11(Object __u12);
- typedef void __t15(String __u16, Object __u17);
- typedef dynamic __t18(String __u19, dynamic __u20);