[CodeIssues] CallToObjectViaBaseIssue: Ignore calls which do not target members of 'base'.

ICSharpCode.NRefactory.CSharp/Refactoring/CodeIssues/CallToObjectEqualsViaBaseIssue.cs

@@ -55,6 +55,10 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 				if (invocationExpression.Arguments.Count != 1) {
 					return;
 				}
+				var memberExpression = invocationExpression.Target as MemberReferenceExpression;
+				if (memberExpression == null || !(memberExpression.Target is BaseReferenceExpression)) {
+					return;
+				}
 				var resolveResult = ctx.Resolve(invocationExpression) as InvocationResolveResult;
 				if (resolveResult == null || !resolveResult.Member.DeclaringTypeDefinition.IsKnownType(KnownTypeCode.Object)) {
 					return;

ICSharpCode.NRefactory.Tests/CSharp/CodeIssues/CallToObjectEqualsViaBaseTests.cs

@@ -89,6 +89,27 @@ class Bar : Foo
 	}
 }");
 		}
+		
+		[Test]
+		public void IgnoresCallsToOtherObjects()
+		{
+			var input = @"
+class Foo
+{
+}
+class Bar : Foo
+{
+	void Baz ()
+	{
+		var foo1 = new Foo();
+		var foo2 = new Foo();
+		bool b = foo1.Equals(foo2);
+	}
+}";
+			TestRefactoringContext context;
+			var issues = GetIssues(new CallToObjectEqualsViaBaseIssue(), input, out context);
+			Assert.AreEqual(0, issues.Count);
+		}
 	}
 }