video_core: Fix few issues in Tess stage

src/shader_recompiler/backend/spirv/spirv_emit_context.h

@@ -204,6 +204,7 @@ public:
     Id workgroup_id{};
     Id local_invocation_id{};
     Id invocation_id{};
+    Id patch_vertices_in{};
     Id sample_id{};
     Id is_helper_invocation{};
     Id subgroup_local_invocation_id{};