binary expression suggestion fix

pkg/analysis_server/test/services/completion/completion_test_util.dart

Index: pkg/analysis_server/test/services/completion/completion_test_util.dart
diff --git a/pkg/analysis_server/test/services/completion/completion_test_util.dart b/pkg/analysis_server/test/services/completion/completion_test_util.dart
index 2153dfe0f9f8f4f2abfff8a57f97b00e1b12d93f..1255940a971e12c51c7d83ca0a9c0b8fcab4170f 100644
--- a/pkg/analysis_server/test/services/completion/completion_test_util.dart
+++ b/pkg/analysis_server/test/services/completion/completion_test_util.dart
@@ -978,4 +978,28 @@ class AbstractSelectorSuggestionTest extends AbstractCompletionTest {
       assertNoSuggestions();
     });
   }
+
+  test_BinaryExpression_LHS() {
+    // SimpleIdentifier  BinaryExpression  VariableDeclaration
+    // VariableDeclarationList  VariableDeclarationStatement
+    addTestSource('main() {int a = 1, b = ^ + 2;}');
+    computeFast();
+    return computeFull(true).then((_) {
+      assertSuggestLocalVariable('a', 'int');
+      assertSuggestImportedClass('Object');
+      assertNotSuggested('b');
+    });
+  }
+
+  test_BinaryExpression_RHS() {
+    // SimpleIdentifier  BinaryExpression  VariableDeclaration
+    // VariableDeclarationList  VariableDeclarationStatement
+    addTestSource('main() {int a = 1, b = 2 + ^;}');
+    computeFast();
+    return computeFull(true).then((_) {
+      assertSuggestLocalVariable('a', 'int');
+      assertSuggestImportedClass('Object');
+      assertNotSuggested('b');
+    });
+  }
 }