shader: preserve typed candidates for unfiltered indirect image access

Co-authored-by: fxpw <fxpw@outlook.com>

src/graphics/shader/recompiler/ir/ShaderIR.h

@@ -158,6 +158,7 @@ struct ImageResource {
 	bool                          written           = false;
 	bool                          atomic            = false;
 	bool                          atomic64          = false;
+	bool                          unfiltered_access_only = true;
 	bool                          depth_compare     = false;
 	bool                          cube              = false;
 	bool                          r128              = false;