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>

test/tint/array/function_parameter.wgsl.expected.msl

@@ -0,0 +1,37 @@
+#include <metal_stdlib>
+
+using namespace metal;
+struct tint_array_wrapper {
+  float arr[4];
+};
+
+float f1(tint_array_wrapper a) {
+  return a.arr[3];
+}
+
+struct tint_array_wrapper_1 {
+  tint_array_wrapper arr[3];
+};
+
+float f2(tint_array_wrapper_1 a) {
+  return a.arr[2].arr[3];
+}
+
+struct tint_array_wrapper_2 {
+  tint_array_wrapper_1 arr[2];
+};
+
+float f3(tint_array_wrapper_2 a) {
+  return a.arr[1].arr[2].arr[3];
+}
+
+kernel void tint_symbol() {
+  tint_array_wrapper const a1 = {.arr={}};
+  tint_array_wrapper_1 const a2 = {.arr={}};
+  tint_array_wrapper_2 const a3 = {.arr={}};
+  float const v1 = f1(a1);
+  float const v2 = f2(a2);
+  float const v3 = f3(a3);
+  return;
+}
+