Resolve not-equals operator

pkg/analyzer/test/generated/resolver_test.dart

Index: pkg/analyzer/test/generated/resolver_test.dart
diff --git a/pkg/analyzer/test/generated/resolver_test.dart b/pkg/analyzer/test/generated/resolver_test.dart
index f206be861752b7e78b419daca2cca6e3a562bf07..4d078abed6b6703cd94dc25e124643d748b8062e 100644
--- a/pkg/analyzer/test/generated/resolver_test.dart
+++ b/pkg/analyzer/test/generated/resolver_test.dart
@@ -1275,7 +1275,40 @@ class ElementResolverTest extends EngineTestCase {
     _listener.assertNoErrors();
   }
 
-  void test_visitBinaryExpression() {
+  void test_visitBinaryExpression_bangEq() {
+    // String i;
+    // var j;
+    // i == j
+    InterfaceType stringType = _typeProvider.stringType;
+    SimpleIdentifier left = AstFactory.identifier3("i");
+    left.staticType = stringType;
+    BinaryExpression expression =
+        AstFactory.binaryExpression(left, TokenType.BANG_EQ, AstFactory.identifier3("j"));
+    _resolveNode(expression);
+    var stringElement = stringType.element;
+    expect(expression.staticElement, isNotNull);
+    expect(expression.staticElement, stringElement.lookUpMethod(TokenType.EQ_EQ.lexeme, stringElement.library));
+    expect(expression.propagatedElement, isNull);
+    _listener.assertNoErrors();
+  }
+
+  void test_visitBinaryExpression_eq() {
+    // String i;
+    // var j;
+    // i == j
+    InterfaceType stringType = _typeProvider.stringType;
+    SimpleIdentifier left = AstFactory.identifier3("i");
+    left.staticType = stringType;
+    BinaryExpression expression =
+        AstFactory.binaryExpression(left, TokenType.EQ_EQ, AstFactory.identifier3("j"));
+    _resolveNode(expression);
+    var stringElement = stringType.element;
+    expect(expression.staticElement, stringElement.lookUpMethod(TokenType.EQ_EQ.lexeme, stringElement.library));
+    expect(expression.propagatedElement, isNull);
+    _listener.assertNoErrors();
+  }
+
+  void test_visitBinaryExpression_plus() {
     // num i;
     // var j;
     // i + j
@@ -1290,7 +1323,7 @@ class ElementResolverTest extends EngineTestCase {
     _listener.assertNoErrors();
   }
 
-  void test_visitBinaryExpression_propagatedElement() {
+  void test_visitBinaryExpression_plus_propagatedElement() {
     // var i = 1;
     // var j;
     // i + j