GLSL: add .expected.glsl files for all tests.

Bug: tint:1301
Change-Id: Id3a591a2fa0dfdb112046d5c57defbae07483e0d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/69480
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Stephen White <senorblanco@chromium.org>

test/buffer/storage/dynamic_index/read.wgsl.expected.glsl

@@ -0,0 +1,47 @@
+#version 310 es
+precision mediump float;
+
+struct Inner {
+  ivec3 a;
+  int b;
+  uvec3 c;
+  uint d;
+  vec3 e;
+  float f;
+  mat2x3 g;
+  mat3x2 h;
+  ivec4 i[4];
+};
+
+layout (binding = 0) buffer S_1 {
+  Inner arr[];
+} s;
+
+struct tint_symbol_2 {
+  uint idx;
+};
+
+void tint_symbol_inner(uint idx) {
+  ivec3 a = s.arr[idx].a;
+  int b = s.arr[idx].b;
+  uvec3 c = s.arr[idx].c;
+  uint d = s.arr[idx].d;
+  vec3 e = s.arr[idx].e;
+  float f = s.arr[idx].f;
+  mat2x3 g = s.arr[idx].g;
+  mat3x2 h = s.arr[idx].h;
+  ivec4 i[4] = s.arr[idx].i;
+}
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+void tint_symbol(tint_symbol_2 tint_symbol_1) {
+  tint_symbol_inner(tint_symbol_1.idx);
+  return;
+}
+void main() {
+  tint_symbol_2 inputs;
+  inputs.idx = uint(gl_LocalInvocationIndex);
+  tint_symbol(inputs);
+}
+
+

test/buffer/storage/dynamic_index/write.wgsl.expected.glsl

@@ -0,0 +1,48 @@
+#version 310 es
+precision mediump float;
+
+struct Inner {
+  ivec3 a;
+  int b;
+  uvec3 c;
+  uint d;
+  vec3 e;
+  float f;
+  mat2x3 g;
+  mat3x2 h;
+  ivec4 i[4];
+};
+
+layout (binding = 0) buffer S_1 {
+  Inner arr[];
+} s;
+
+struct tint_symbol_2 {
+  uint idx;
+};
+
+void tint_symbol_inner(uint idx) {
+  s.arr[idx].a = ivec3(0, 0, 0);
+  s.arr[idx].b = 0;
+  s.arr[idx].c = uvec3(0u, 0u, 0u);
+  s.arr[idx].d = 0u;
+  s.arr[idx].e = vec3(0.0f, 0.0f, 0.0f);
+  s.arr[idx].f = 0.0f;
+  s.arr[idx].g = mat2x3(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f);
+  s.arr[idx].h = mat3x2(0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f);
+  ivec4 tint_symbol_3[4] = ivec4[4](ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0), ivec4(0, 0, 0, 0));
+  s.arr[idx].i = tint_symbol_3;
+}
+
+layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
+void tint_symbol(tint_symbol_2 tint_symbol_1) {
+  tint_symbol_inner(tint_symbol_1.idx);
+  return;
+}
+void main() {
+  tint_symbol_2 inputs;
+  inputs.idx = uint(gl_LocalInvocationIndex);
+  tint_symbol(inputs);
+}
+
+