Add test for using local const in types

Signed-off-by: sagudev <16504129+sagudev@users.noreply.github.com>

naga/tests/in/const-exprs.wgsl

@@ -12,6 +12,7 @@ fn main() {
     splat_of_constant();
     compose_of_constant();
     compose_of_splat();
+    test_local_const();
 }
 
 // Swizzle the value of nested Compose expressions.
@@ -109,3 +110,8 @@ fn relational() {
     var vec_all_false    = all(vec4(vec3(vec2<bool>(), TRUE), false));
     var vec_all_true     = all(vec4(true));
 }
+
+fn test_local_const() {
+    const local_const = 2;
+	var arr: array<f32, local_const>;
+}

naga/tests/out/glsl/const-exprs.main.Compute.glsl

@@ -71,6 +71,11 @@ void compose_of_splat() {
     return;
 }
 
+void test_local_const() {
+    float arr[2] = float[2](0.0, 0.0);
+    return;
+}
+
 uint map_texture_kind(int texture_kind) {
     switch(texture_kind) {
         case 0: {
@@ -115,6 +120,7 @@ void main() {
     splat_of_constant();
     compose_of_constant();
     compose_of_splat();
+    test_local_const();
     return;
 }
 

naga/tests/out/hlsl/const-exprs.hlsl

@@ -77,6 +77,13 @@ void compose_of_splat()
     return;
 }
 
+void test_local_const()
+{
+    float arr[2] = (float[2])0;
+
+    return;
+}
+
 uint map_texture_kind(int texture_kind)
 {
     switch(texture_kind) {
@@ -128,5 +135,6 @@ void main()
     splat_of_constant();
     compose_of_constant();
     compose_of_splat();
+    test_local_const();
     return;
 }

naga/tests/out/msl/const-exprs.msl

@@ -4,6 +4,9 @@
 
 using metal::uint;
 
+struct type_6 {
+    float inner[2];
+};
 constant uint TWO = 2u;
 constant int THREE = 3;
 constant bool TRUE = true;
@@ -76,6 +79,12 @@ void compose_of_splat(
     return;
 }
 
+void test_local_const(
+) {
+    type_6 arr = {};
+    return;
+}
+
 uint map_texture_kind(
     int texture_kind
 ) {
@@ -125,5 +134,6 @@ kernel void main_(
     splat_of_constant();
     compose_of_constant();
     compose_of_splat();
+    test_local_const();
     return;
 }