tint->dawn: Shuffle source tree in preperation of merging repos

docs/    -> docs/tint/
fuzzers/ -> src/tint/fuzzers/
samples/ -> src/tint/cmd/
src/     -> src/tint/
test/    -> test/tint/

BUG=tint:1418,tint:1433

Change-Id: Id2aa79f989aef3245b80ef4aa37a27ff16cd700b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/80482
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
diff --git a/src/tint/ast/multisampled_texture.cc b/src/tint/ast/multisampled_texture.cc
new file mode 100644
index 0000000..f216a3c
--- /dev/null
+++ b/src/tint/ast/multisampled_texture.cc
@@ -0,0 +1,52 @@
+// Copyright 2020 The Tint Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "src/tint/ast/multisampled_texture.h"
+
+#include "src/tint/program_builder.h"
+
+TINT_INSTANTIATE_TYPEINFO(tint::ast::MultisampledTexture);
+
+namespace tint {
+namespace ast {
+
+MultisampledTexture::MultisampledTexture(ProgramID pid,
+                                         const Source& src,
+                                         TextureDimension d,
+                                         const Type* ty)
+    : Base(pid, src, d), type(ty) {
+  TINT_ASSERT(AST, type);
+}
+
+MultisampledTexture::MultisampledTexture(MultisampledTexture&&) = default;
+
+MultisampledTexture::~MultisampledTexture() = default;
+
+std::string MultisampledTexture::FriendlyName(
+    const SymbolTable& symbols) const {
+  std::ostringstream out;
+  out << "texture_multisampled_" << dim << "<" << type->FriendlyName(symbols)
+      << ">";
+  return out.str();
+}
+
+const MultisampledTexture* MultisampledTexture::Clone(CloneContext* ctx) const {
+  // Clone arguments outside of create() call to have deterministic ordering
+  auto src = ctx->Clone(source);
+  auto* ty = ctx->Clone(type);
+  return ctx->dst->create<MultisampledTexture>(src, dim, ty);
+}
+
+}  // namespace ast
+}  // namespace tint