Don't offer UseObjectInitializer unless the ObjectInitializer is directly on the right of the =

src/EditorFeatures/CSharpTest/UseObjectInitializer/UseObjectInitializerTests.cs

@@ -454,5 +454,20 @@ void M()
 }",
 compareTokens: false);
         }
+
+        [WorkItem(15459, "https://github.com/dotnet/roslyn/issues/15459")]
+        [Fact, Trait(Traits.Feature, Traits.Features.CodeActionsUseObjectInitializer)]
+        public async Task TestMissingInNonTopLevelObjectInitializer()
+        {
+            await TestMissingAsync(
+@"class C {
+	int a;
+	C Add(int x) {
+		var c = Add([||]new int());
+		c.a = 1;
+		return c;
+	}
+}");
+        }
     }
 }
\ No newline at end of file

src/Features/Core/Portable/UseCollectionInitializer/ObjectCreationExpressionAnalyzer.cs

@@ -238,7 +238,7 @@ private bool TryInitializeVariableDeclarationCase()
                 return false;
             }
 
-            var containingDeclarator = _objectCreationExpression.FirstAncestorOrSelf<TVariableDeclaratorSyntax>();
+            var containingDeclarator = _objectCreationExpression.Parent as TVariableDeclaratorSyntax;
             if (containingDeclarator == null)
             {
                 return false;

src/Features/Core/Portable/UseObjectInitializer/ObjectCreationExpressionAnalyzer.cs

@@ -248,7 +248,7 @@ private bool TryInitializeVariableDeclarationCase()
                 return false;
             }
 
-            var containingDeclarator = _objectCreationExpression.FirstAncestorOrSelf<TVariableDeclaratorSyntax>();
+            var containingDeclarator = _objectCreationExpression.Parent as TVariableDeclaratorSyntax;
             if (containingDeclarator == null)
             {
                 return false;