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/InstEmitTexture.cs

@@ -443,7 +443,7 @@ namespace Ryujinx.Graphics.Shader.Instructions
 
             TextureProperty property = (TextureProperty)op.RawOpCode.Extract(22, 6);
 
-            //TODO: Validate and use property.
+            // TODO: Validate and use property.
             Instruction inst = Instruction.TextureSize;
 
             TextureType type = TextureType.Texture2D;