Make descriptor_heap shaders self-contained

Drops the dependency on nvshaders/slang_types.h. The local shaderio.h
files now define everything they need: the GLSL variant inlines the
two HLSL-style type aliases (float4x4 -> mat4, float3 -> vec3) used by
the shared struct definitions, and the Slang variant uses native types
directly.

Updates the // Compile: hint lines in the four GLSL and two Slang
sources that include shaderio.h to drop the -I paths into nvpro-samples
so anyone with glslang/slangc can rebuild the fixtures with no
out-of-tree dependencies. Recompiled SPVs are byte-identical to the
ones already committed, so no golden regeneration is needed.

The two slang-only compute fixtures (multi_type_heap, as_heap) do not
include shaderio.h and were already self-contained.

Author: chaoticbob

tests/descriptor_heap/glsl/bindless.frag.glsl

@@ -1,4 +1,4 @@
-// Compile: glslang -V --target-env vulkan1.3 -S frag -e main -IC:/code/source/nvpro-samples/nvpro_core2 -IC:/code/source/nvpro-samples/vk_mini_samples/common -o bindless.frag.spv bindless.frag.glsl
+// Compile: glslang -V --target-env vulkan1.3 -S frag -e main -o bindless.frag.spv bindless.frag.glsl
 /*
  * Copyright (c) 2024-2026, NVIDIA CORPORATION.  All rights reserved.
  *

tests/descriptor_heap/glsl/bindless.vert.glsl

@@ -1,4 +1,4 @@
-// Compile: glslang -V --target-env vulkan1.3 -S vert -e main -IC:/code/source/nvpro-samples/nvpro_core2 -IC:/code/source/nvpro-samples/vk_mini_samples/common -o bindless.vert.spv bindless.vert.glsl
+// Compile: glslang -V --target-env vulkan1.3 -S vert -e main -o bindless.vert.spv bindless.vert.glsl
 /*
  * Copyright (c) 2024-2026, NVIDIA CORPORATION.  All rights reserved.
  *

tests/descriptor_heap/glsl/per_draw.frag.glsl

@@ -1,4 +1,4 @@
-// Compile: glslang -V --target-env vulkan1.3 -S frag -e main -IC:/code/source/nvpro-samples/nvpro_core2 -IC:/code/source/nvpro-samples/vk_mini_samples/common -o per_draw.frag.spv per_draw.frag.glsl
+// Compile: glslang -V --target-env vulkan1.3 -S frag -e main -o per_draw.frag.spv per_draw.frag.glsl
 /*
  * Copyright (c) 2024-2026, NVIDIA CORPORATION.  All rights reserved.
  *

tests/descriptor_heap/glsl/per_draw.vert.glsl

@@ -1,4 +1,4 @@
-// Compile: glslang -V --target-env vulkan1.3 -S vert -e main -IC:/code/source/nvpro-samples/nvpro_core2 -IC:/code/source/nvpro-samples/vk_mini_samples/common -o per_draw.vert.spv per_draw.vert.glsl
+// Compile: glslang -V --target-env vulkan1.3 -S vert -e main -o per_draw.vert.spv per_draw.vert.glsl
 /*
  * Copyright (c) 2024-2026, NVIDIA CORPORATION.  All rights reserved.
  *

tests/descriptor_heap/glsl/shaderio.h

@@ -20,9 +20,10 @@
 #ifndef SHADERIO_H
 #define SHADERIO_H
 
-#include "nvshaders/slang_types.h"
-
-NAMESPACE_SHADERIO_BEGIN()
+// HLSL/Slang-style type aliases so the struct definitions below can be shared
+// verbatim with the matching slang/ fixture.
+#define float4x4 mat4
+#define float3   vec3
 
 /*
  * Push data layout (used by vkCmdPushDataEXT):
@@ -68,6 +69,4 @@ struct BindlessPushData
                      // gl_InstanceIndex
 };
 
-NAMESPACE_SHADERIO_END()
-
 #endif

tests/descriptor_heap/slang/bindless.slang

@@ -1,5 +1,5 @@
-// Compile (vertex):   slangc bindless.slang -target spirv -capability spvDescriptorHeapEXT -I C:/code/source/nvpro-samples/nvpro_core2 -I C:/code/source/nvpro-samples/vk_mini_samples/common -entry vertexMain   -stage vertex   -o bindless.vert.spv
-// Compile (fragment): slangc bindless.slang -target spirv -capability spvDescriptorHeapEXT -I C:/code/source/nvpro-samples/nvpro_core2 -I C:/code/source/nvpro-samples/vk_mini_samples/common -entry fragmentMain -stage fragment -o bindless.frag.spv
+// Compile (vertex):   slangc bindless.slang -target spirv -capability spvDescriptorHeapEXT -entry vertexMain   -stage vertex   -o bindless.vert.spv
+// Compile (fragment): slangc bindless.slang -target spirv -capability spvDescriptorHeapEXT -entry fragmentMain -stage fragment -o bindless.frag.spv
 /*
  * Copyright (c) 2024-2026, NVIDIA CORPORATION.  All rights reserved.
  *

tests/descriptor_heap/slang/per_draw.slang

@@ -1,5 +1,5 @@
-// Compile (vertex):   slangc per_draw.slang -target spirv -I C:/code/source/nvpro-samples/nvpro_core2 -I C:/code/source/nvpro-samples/vk_mini_samples/common -entry vertexMain   -stage vertex   -o per_draw.vert.spv
-// Compile (fragment): slangc per_draw.slang -target spirv -I C:/code/source/nvpro-samples/nvpro_core2 -I C:/code/source/nvpro-samples/vk_mini_samples/common -entry fragmentMain -stage fragment -o per_draw.frag.spv
+// Compile (vertex):   slangc per_draw.slang -target spirv -entry vertexMain   -stage vertex   -o per_draw.vert.spv
+// Compile (fragment): slangc per_draw.slang -target spirv -entry fragmentMain -stage fragment -o per_draw.frag.spv
 /*
  * Copyright (c) 2024-2026, NVIDIA CORPORATION.  All rights reserved.
  *

tests/descriptor_heap/slang/shaderio.h

@@ -20,10 +20,6 @@
 #ifndef SHADERIO_H
 #define SHADERIO_H
 
-#include "nvshaders/slang_types.h"
-
-NAMESPACE_SHADERIO_BEGIN()
-
 /*
  * Push data layout (used by vkCmdPushDataEXT):
  *   Offset 0:   FrameInfo (160 bytes) — pushed once per frame
@@ -68,6 +64,4 @@ struct BindlessPushData
                      // gl_InstanceIndex
 };
 
-NAMESPACE_SHADERIO_END()
-
 #endif