add named constructor, cascade selector suggestions and more tests

pkg/analysis_server/test/services/completion/imported_computer_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 test.services.completion.toplevel;
 
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/services/completion/imported_computer.dart';
 import 'package:unittest/unittest.dart';
 
@@ skipping 278 matching lines @@
     // VariableDeclarationStatement  Block
     addSource('/testA.dart', 'var T1;');
     addTestSource('''
       import "/testA.dart";
       class C {a() {var ^}}''');
     return computeFull().then((_) {
       assertNotSuggested('T1');
     });
   }
 
+  xtest_ConstructorName_importedClass() {
+    // SimpleIdentifier  PrefixedIdentifier  TypeName  ConstructorName
+    // InstanceCreationExpression
+    addSource('/testB.dart', '''
+      lib B;
+      class X {X.c(); X._d(); z() {}}''');
+    addTestSource('''
+      import "/testB.dart";
+      var m;
+      main() {new X.^}''');
+    return computeFull().then((_) {
+      assertNoSuggestions();
+    });
+  }
+
+  xtest_ConstructorName_localClass() {
+    // SimpleIdentifier  PrefixedIdentifier  TypeName  ConstructorName
+    // InstanceCreationExpression
+    addTestSource('''
+      var m;
+      class X {X.c(); X._d(); z() {}}
+      main() {new X.^}''');
+    return computeFull().then((_) {
+      assertNoSuggestions();
+    });
+  }
+
   // TODO (danrubel) implement
   xtest_InstanceCreationExpression() {
     // SimpleIdentifier  TypeName  ConstructorName  InstanceCreationExpression
     addSource('/testA.dart', '''
       class A {int x;}
       B() { }''');
     addTestSource('''
       import "/testA.dart";
       class C {foo(){new ^}}''');
     return computeFull().then((_) {
       assertSuggestClass('A');
       assertNotSuggested('x');
       assertNotSuggested('B');
       // Should not suggest compilation unit elements
       // which are returned by the LocalComputer
       assertNotSuggested('C');
     });
   }
 
   // TODO (danrubel) implement
+  xtest_IsExpression_imported() {
+    // SimpleIdentifier  TypeName  IsExpression  IfStatement
+    addSource('/testB.dart', '''
+      lib B;
+      class X {X.c(); X._d(); z() {}}''');
+    addTestSource('''
+      import "/testB.dart";
+      main() {var x; if (x is ^) { }}''');
+    return computeFull().then((_) {
+      assertSuggestConstructor('c');
+      assertNotSuggested('main');
+      assertNotSuggested('X');
+      assertNotSuggested('B');
+      assertNotSuggested('x');
+    });
+  }
+
+  // TODO (danrubel) implement
+  xtest_IsExpression_local() {
+    // SimpleIdentifier  TypeName  IsExpression  IfStatement
+    addTestSource('''
+      class X {X.c(); X._d(); z() {}}
+      main() {var x; if (x is ^) { }}''');
+    return computeFull().then((_) {
+      assertNoSuggestions();
+    });
+  }
+
+  // TODO (danrubel) implement
   xtest_VariableDeclarationStatement_RHS() {
     // SimpleIdentifier  VariableDeclaration  VariableDeclarationList
     // VariableDeclarationStatement
     addSource('/testA.dart', 'class A {int x;} class _B { }');
     addTestSource('''
       import "/testA.dart";
       class C {foo(){var e = ^}}''');
     return computeFull().then((_) {
       assertSuggestClass('A');
       assertNotSuggested('x');
       assertNotSuggested('_B');
       // Should not suggest compilation unit elements
       // which are returned by the LocalComputer
       assertNotSuggested('C');
     });
   }
 }