Issue 27689. Fix incremental resolution with body modifiers changes.

pkg/analyzer/test/generated/incremental_resolver_test.dart

Index: pkg/analyzer/test/generated/incremental_resolver_test.dart
diff --git a/pkg/analyzer/test/generated/incremental_resolver_test.dart b/pkg/analyzer/test/generated/incremental_resolver_test.dart
index eba34502857c4a23580fca5df657ca877a28f958..5bfd2a97b0aa4c1a0277cc713fa197e28e9f55ea 100644
--- a/pkg/analyzer/test/generated/incremental_resolver_test.dart
+++ b/pkg/analyzer/test/generated/incremental_resolver_test.dart
@@ -1011,6 +1011,55 @@ class A {
         expectedSuccess: false);
   }
 
+  void test_false_inBody_addAsync() {
+    _resolveUnit(r'''
+class C {
+  test() {}
+}
+''');
+    _updateAndValidate(
+        r'''
+class C {
+  test() async {}
+}
+''',
+        expectedSuccess: false);
+  }
+
+  void test_false_inBody_async_addStar() {
+    _resolveUnit(r'''
+import 'dart:async';
+class C {
+  Stream test() async {}
+}
+''');
+    _updateAndValidate(
+        r'''
+import 'dart:async';
+class C {
+  Stream test() async* {}
+}
+''',
+        expectedSuccess: false);
+  }
+
+  void test_false_inBody_async_removeStar() {
+    _resolveUnit(r'''
+import 'dart:async';
+class C {
+  Stream test() async* {}
+}
+''');
+    _updateAndValidate(
+        r'''
+import 'dart:async';
+class C {
+  Stream test() async {}
+}
+''',
+        expectedSuccess: false);
+  }
+
   void test_false_inBody_functionExpression() {
     _resolveUnit(r'''
 class C extends D {
@@ -1034,6 +1083,36 @@ class D {}
         expectedSuccess: false);
   }
 
+  void test_false_inBody_removeAsync() {
+    _resolveUnit(r'''
+class C {
+  test() async {}
+}
+''');
+    _updateAndValidate(
+        r'''
+class C {
+  test() {}
+}
+''',
+        expectedSuccess: false);
+  }
+
+  void test_false_inBody_sync_addStar() {
+    _resolveUnit(r'''
+class C {
+  test() {}
+}
+''');
+    _updateAndValidate(
+        r'''
+class C {
+  test() sync* {}
+}
+''',
+        expectedSuccess: false);
+  }
+
   void test_false_topLevelFunction_name() {
     _resolveUnit(r'''
 a() {}