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/Instructions/InstEmitFArith.cs

@@ -146,7 +146,7 @@ namespace Ryujinx.Graphics.Shader.Instructions
                 context.Copy(dest, res);
             }
 
-            //TODO: CC, X
+            // TODO: CC, X
         }
 
         public static void Fsetp(EmitterContext context)