Rename "insts" directory to "instructions"

src/instructions/annotation.cpp

@@ -0,0 +1,37 @@
+/* This file is part of the sirit project.
+ * Copyright (c) 2018 ReinUsesLisp
+ * This software may be used and distributed according to the terms of the GNU
+ * Lesser General Public License version 3 or any later version.
+ */
+
+#include "common_types.h"
+#include "op.h"
+#include "sirit/sirit.h"
+#include <memory>
+#include <vector>
+
+namespace Sirit {
+
+Id Module::Decorate(Id target, spv::Decoration decoration,
+                    const std::vector<Literal>& literals) {
+    auto op{std::make_unique<Op>(spv::Op::OpDecorate)};
+    op->Add(target);
+    op->Add(static_cast<u32>(decoration));
+    op->Add(literals);
+    AddAnnotation(std::move(op));
+    return target;
+}
+
+Id Module::MemberDecorate(Id structure_type, Literal member,
+                          spv::Decoration decoration,
+                          const std::vector<Literal>& literals) {
+    auto op{std::make_unique<Op>(spv::Op::OpMemberDecorate)};
+    op->Add(structure_type);
+    op->Add(member);
+    op->Add(static_cast<u32>(decoration));
+    op->Add(literals);
+    AddAnnotation(std::move(op));
+    return structure_type;
+}
+
+} // namespace Sirit