[ package:vm_service] Update CodeRef.function to have type dynamic

The function property of a Code object can contain either a Function or
a NativeFunction. This change updates the protocol specification to
properly document existing behavior and regenerates package:vm_service
to update `CodeRef.function` to have a `dynamic` type.

This is a breaking change to `package:vm_service`, so this will be
released as 15.0.0.

Related to flutter/devtools#8567

TEST=N/A

Change-Id: Ie89723cdba8176be0d84a57a878fbedbca57f9c0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/398260
Commit-Queue: Ben Konyi <[email protected]>
Reviewed-by: Derek Xu <[email protected]>
Auto-Submit: Ben Konyi <[email protected]>

Author: bkonyi

pkg/vm_service/CHANGELOG.md

@@ -1,3 +1,9 @@
+## 15.0.0
+- Update type of `CodeRef.function` from `FuncRef` to `dynamic` to allow for `NativeFunction`
+  functions ([flutter/devtools #8567]).
+
+[flutter/devtools #8567]: https://github.com/flutter/devtools/issues/8567
+
 ## 14.3.1
 - Fix crash that could occur when trying to send a service extension response
   after the service connection had already been disposed of ([flutter/flutter #157296]).

pkg/vm_service/lib/src/vm_service.dart

@@ -3205,8 +3205,10 @@ class CodeRef extends ObjRef {
   /*CodeKind*/ String? kind;
 
   /// This code object's corresponding function.
+  ///
+  /// [function] can be one of [FuncRef] or [NativeFunction].
   @optional
-  FuncRef? function;
+  dynamic function;
 
   CodeRef({
     this.name,
@@ -3220,8 +3222,8 @@ class CodeRef extends ObjRef {
   CodeRef._fromJson(Map<String, dynamic> json) : super._fromJson(json) {
     name = json['name'] ?? '';
     kind = json['kind'] ?? '';
-    function =
-        createServiceObject(json['function'], const ['FuncRef']) as FuncRef?;
+    function = createServiceObject(
+        json['function'], const ['FuncRef', 'NativeFunction']) as dynamic;
   }
 
   @override
@@ -3261,9 +3263,11 @@ class Code extends Obj implements CodeRef {
   /*CodeKind*/ String? kind;
 
   /// This code object's corresponding function.
+  ///
+  /// [function] can be one of [FuncRef] or [NativeFunction].
   @optional
   @override
-  FuncRef? function;
+  dynamic function;
 
   Code({
     this.name,
@@ -3277,8 +3281,8 @@ class Code extends Obj implements CodeRef {
   Code._fromJson(Map<String, dynamic> json) : super._fromJson(json) {
     name = json['name'] ?? '';
     kind = json['kind'] ?? '';
-    function =
-        createServiceObject(json['function'], const ['FuncRef']) as FuncRef?;
+    function = createServiceObject(
+        json['function'], const ['FuncRef', 'NativeFunction']) as dynamic;
   }
 
   @override

pkg/vm_service/pubspec.yaml

@@ -1,5 +1,5 @@
 name: vm_service
-version: 14.3.1
+version: 15.0.0
 description: >-
   A library to communicate with a service implementing the Dart VM
   service protocol.

runtime/vm/service/service.md

@@ -2228,7 +2228,7 @@ class @Code extends @Object {
   CodeKind kind;
 
   // This code object's corresponding function.
-  @Function function [optional];
+  @Function|NativeFunction function [optional];
 }
 ```
 
@@ -2243,7 +2243,7 @@ class Code extends Object {
   CodeKind kind;
 
   // This code object's corresponding function.
-  @Function function [optional];
+  @Function|NativeFunction function [optional];
 }
 ```