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>

src/tint/cmd/BUILD.gn

@@ -0,0 +1,44 @@
+# Copyright 2021 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.
+
+import("//build_overrides/build.gni")
+import("../../../tint_overrides_with_defaults.gni")
+
+executable("tint") {
+  sources = [ "main.cc" ]
+  deps = [
+    "${tint_root_dir}/src/tint:libtint",
+    "${tint_root_dir}/src/tint:tint_val",
+    "${tint_spirv_tools_dir}/:spvtools",
+    "${tint_spirv_tools_dir}/:spvtools_opt",
+    "${tint_spirv_tools_dir}/:spvtools_val",
+  ]
+
+  if (tint_build_glsl_writer) {
+    deps += [
+      "${tint_root_dir}/third_party/glslang:glslang_default_resource_limits_sources",
+      "${tint_root_dir}/third_party/glslang:glslang_lib_sources",
+    ]
+  }
+
+  configs += [
+    "${tint_root_dir}/src/tint:tint_common_config",
+    "${tint_root_dir}/src/tint:tint_config",
+  ]
+
+  if (build_with_chromium) {
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+}

src/tint/cmd/CMakeLists.txt

@@ -0,0 +1,39 @@
+# 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.
+
+set(TINT_SRCS
+  main.cc
+)
+
+## Tint executable
+add_executable(tint ${TINT_SRCS})
+tint_default_compile_options(tint)
+target_link_libraries(tint libtint tint_val)
+
+if(${TINT_BUILD_SPV_READER} OR ${TINT_BUILD_SPV_WRITER})
+  target_link_libraries(tint SPIRV-Tools)
+endif()
+
+if(${TINT_BUILD_GLSL_WRITER})
+  target_link_libraries(tint glslang)
+  target_link_libraries(tint glslang-default-resource-limits)
+  if(NOT MSVC)
+    target_compile_options(tint PRIVATE
+      -Wno-reserved-id-macro
+      -Wno-shadow-field-in-constructor
+      -Wno-shadow
+      -Wno-weak-vtables
+    )
+  endif()
+endif()