Return a GUIContent object with the name and icon of an Object.

If the object is null, the icon will be picked according to type.

Object Content usage.

	// Simple Editor Script that shows the icons of Transform, rigidbody, GameObject
	// and MonoBehaviour in 4 buttons.
	
	class EditorGUIUtilityObjectContent extends EditorWindow {
	
		@MenuItem("Examples/ObjectContent Usage")
		static function Init() {
			var window = GetWindow(EditorGUIUtilityObjectContent);
			window.Show();	
		}
		
		function OnGUI() {
			EditorGUILayout.PrefixLabel("Select a type:");
			EditorGUILayout.BeginHorizontal();
				if(GUILayout.Button(EditorGUIUtility.ObjectContent(null,Transform).image))
					DoSomething();
				if(GUILayout.Button(EditorGUIUtility.ObjectContent(null,Rigidbody).image))
					DoSomething();
				if(GUILayout.Button(EditorGUIUtility.ObjectContent(null,GameObject).image))
					DoSomething();
				if(GUILayout.Button(EditorGUIUtility.ObjectContent(null,MonoBehaviour).image))
					DoSomething();
			EditorGUILayout.EndHorizontal();
			
			if(GUILayout.Button("Close"))
				this.Close();
			
		}
		
		function DoSomething() {
			Debug.Log("Hello there!");
		}
	}