Stop propagating return types for top-level function declarations

pkg/analyzer/test/generated/resolver_test.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library engine.resolver_test;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/context/context.dart' as newContext;
 import 'package:analyzer/src/generated/ast.dart';
@@ skipping 13425 matching lines @@
     _assertTypeOfMarkedExpression(
         r'''
 f1(x) {
   var v = x.toString();
   return v; // marker
 }''',
         null,
         typeProvider.stringType);
   }
 
-  void test_propagatedReturnType_function_hasReturnType_returnsNull() {
-    String code = r'''
-String f() => null;
-main() {
-  var v = f();
-}''';
-    _assertPropagatedAssignedType(
-        code, typeProvider.dynamicType, typeProvider.stringType);
-  }
-
-  void test_propagatedReturnType_function_lessSpecificStaticReturnType() {
-    String code = r'''
-Object f() => 42;
-main() {
-  var v = f();
-}''';
-    _assertPropagatedAssignedType(
-        code, typeProvider.dynamicType, typeProvider.intType);
-  }
-
-  void test_propagatedReturnType_function_moreSpecificStaticReturnType() {
-    String code = r'''
-int f(v) => (v as num);
-main() {
-  var v = f(3);
-}''';
-    _assertPropagatedAssignedType(
-        code, typeProvider.dynamicType, typeProvider.intType);
-  }
-
-  void test_propagatedReturnType_function_noReturnTypeName_blockBody_multipleReturns() {
-    String code = r'''
-f() {
-  if (true) return 0;
-  return 1.0;
-}
-main() {
-  var v = f();
-}''';
-    _assertPropagatedAssignedType(
-        code, typeProvider.dynamicType, typeProvider.numType);
-  }
-
-  void test_propagatedReturnType_function_noReturnTypeName_blockBody_oneReturn() {
-    String code = r'''
-f() {
-  var z = 42;
-  return z;
-}
-main() {
-  var v = f();
-}''';
-    _assertPropagatedAssignedType(
-        code, typeProvider.dynamicType, typeProvider.intType);
-  }
-
-  void test_propagatedReturnType_function_noReturnTypeName_expressionBody() {
-    String code = r'''
-f() => 42;
-main() {
-  var v = f();
-}''';
-    _assertPropagatedAssignedType(
-        code, typeProvider.dynamicType, typeProvider.intType);
-  }
-
   void test_propagatedReturnType_localFunction() {
     String code = r'''
 main() {
   f() => 42;
   var v = f();
 }''';
     _assertPropagatedAssignedType(
         code, typeProvider.dynamicType, typeProvider.intType);
   }
 
@@ skipping 1072 matching lines @@
         // check propagated type
         FunctionType propagatedType = node.propagatedType as FunctionType;
         expect(propagatedType.returnType, test.typeProvider.stringType);
       } on AnalysisException catch (e, stackTrace) {
         thrownException[0] = new CaughtException(e, stackTrace);
       }
     }
     return null;
   }
 }