made all ignored tests pass. well except the one for #2206.

Author: retailcoder

Rubberduck.Parsing/Symbols/DeclarationSymbolsListener.cs

@@ -165,6 +165,8 @@ private IEnumerable<IAnnotation> FindAnnotations(int line)
         /// </remarks>
         private void DeclareControlsAsMembers(IVBComponent form)
         {
+            if (form.Controls == null) { return; }
+
             foreach (var control in form.Controls)
             {
                 // The as type declaration should be TextBox, CheckBox, etc. depending on the type.

RubberduckTests/Grammar/ResolverTests.cs

@@ -2124,8 +2124,6 @@ End Sub
             Assert.AreEqual(1, declaration.References.Count());
         }
 
-        // Ignored because handling forms/hierarchies is an open issue.
-        [Ignore]
         [TestMethod]
         public void GivenControlDeclaration_ResolvesUsageInCodeBehind()
         {

RubberduckTests/Mocks/MockUserFormBuilder.cs

@@ -68,6 +68,7 @@ public Mock<IVBComponent> Build()
 
             var window = new Mock<IWindow>();
             window.SetupProperty(w => w.IsVisible, false);
+            _component.Setup(m => m.Controls).Returns(_vbControls.Object);
             _component.Setup(m => m.DesignerWindow()).Returns(window.Object);
 
             return _component;