Misc cleanup (#708)

* Fix typos

* Remove unneeded using statements

* Enforce var style more

* Remove redundant qualifiers

* Fix some indentation

* Disable naming warnings on files with external enum names

* Fix build

* Mass find & replace for comments with no spacing

* Standardize todo capitalization and for/if spacing

Ryujinx.Graphics/Shader/IntermediateRepresentation/Operation.cs

@@ -23,7 +23,7 @@ namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
             Inst = inst;
             Dest = dest;
 
-            //The array may be modified externally, so we store a copy.
+            // The array may be modified externally, so we store a copy.
             _sources = (Operand[])sources.Clone();
 
             for (int index = 0; index < _sources.Length; index++)