Support multiple destination operands on shader IR and shuffle predicates (#1964)

* Support multiple destination operands on shader IR and shuffle predicates

* Cache version change

Ryujinx.Graphics.Shader/IntermediateRepresentation/INode.cs

@@ -4,8 +4,10 @@ namespace Ryujinx.Graphics.Shader.IntermediateRepresentation
     {
         Operand Dest { get; set; }
 
+        int DestsCount { get; }
         int SourcesCount { get; }
 
+        Operand GetDest(int index);
         Operand GetSource(int index);
 
         void SetSource(int index, Operand operand);