Adjust language so it is agnostic of what JS does

webgpu.h

@@ -3846,13 +3846,12 @@ typedef struct WGPUTextureDescriptor {
 
 /**
  * If `attributes` is empty *and* `stepMode` is @ref WGPUVertexStepMode_Undefined,
- * indicates a "hole" in the parent @ref WGPUVertexState `buffers` array:
- * the pipeline does not use a vertex buffer in this `slot`.
- * (`arrayStride` is not validated.)
+ * indicates a "hole" in the parent @ref WGPUVertexState `buffers` array
+ * (`null` in the JS API, behaving accordingly).
  *
  * If `attributes` is empty but `stepMode` is *not* @ref WGPUVertexStepMode_Undefined,
- * the pipeline still requires a vertex buffer to be bound in this `slot`,
- * and `arrayStride` is still validated.
+ * indicates a vertex buffer with no attributes (`{ attributes: [] }` in the JS API,
+ * behaving accordingly).
  *
  * If `stepMode` is @ref WGPUVertexStepMode_Undefined but `attributes` is *not*
  * empty, `stepMode` defaults to @ref WGPUVertexStepMode_Vertex.

webgpu.yml

@@ -3098,13 +3098,12 @@ structs:
   - name: vertex_buffer_layout
     doc: |
       If `attributes` is empty *and* `stepMode` is @ref WGPUVertexStepMode_Undefined,
-      indicates a "hole" in the parent @ref WGPUVertexState `buffers` array:
-      the pipeline does not use a vertex buffer in this `slot`.
-      (`arrayStride` is not validated.)
+      indicates a "hole" in the parent @ref WGPUVertexState `buffers` array
+      (`null` in the JS API, behaving accordingly).
 
       If `attributes` is empty but `stepMode` is *not* @ref WGPUVertexStepMode_Undefined,
-      the pipeline still requires a vertex buffer to be bound in this `slot`,
-      and `arrayStride` is still validated.
+      indicates a vertex buffer with no attributes (`{ attributes: [] }` in the JS API,
+      behaving accordingly).
 
       If `stepMode` is @ref WGPUVertexStepMode_Undefined but `attributes` is *not*
       empty, `stepMode` defaults to @ref WGPUVertexStepMode_Vertex.