fixes #28236, generic methods should not cause warnings in Dart 1

pkg/analyzer/test/generated/static_type_analyzer_test.dart

Index: pkg/analyzer/test/generated/static_type_analyzer_test.dart
diff --git a/pkg/analyzer/test/generated/static_type_analyzer_test.dart b/pkg/analyzer/test/generated/static_type_analyzer_test.dart
index 3a510f9a804f5811f6999d11b2d62b114ef08757..9d92cf508b9eb8d3c60ddcebd124737972b8df5e 100644
--- a/pkg/analyzer/test/generated/static_type_analyzer_test.dart
+++ b/pkg/analyzer/test/generated/static_type_analyzer_test.dart
@@ -141,10 +141,11 @@ main() {
     // C - m
     TypeParameterType typeS;
     {
-      expectFunctionType('m);', '<S>(S) → void',
-          elementTypeParams: '[S]', typeFormals: '[S]');
+      FunctionTypeImpl type = expectFunctionType('m);', '<S>(S) → void',
+          elementTypeParams: '[S]',
+          typeFormals: '[S]',
+          identifierType: '(dynamic) → void');
 
-      FunctionTypeImpl type = findIdentifier('m);').staticType;
       typeS = type.typeFormals[0].type;
       type = type.instantiate([DynamicTypeImpl.instance]);
       expect(type.toString(), '(dynamic) → void');
@@ -154,13 +155,13 @@ main() {
     }
     // C - m - f
     {
-      expectFunctionType('f);', '<U>(S, U) → void',
+      FunctionTypeImpl type = expectFunctionType('f);', '<U>(S, U) → void',
           elementTypeParams: '[U]',
           typeParams: '[S]',
           typeArgs: '[S]',
-          typeFormals: '[U]');
+          typeFormals: '[U]',
+          identifierType: '(S, dynamic) → void');
 
-      FunctionTypeImpl type = findIdentifier('f);').staticType;
       type = type.instantiate([DynamicTypeImpl.instance]);
       expect(type.toString(), '(S, dynamic) → void');
       expect(type.typeParameters.toString(), '[S, U]');