fix typo

naga/tests/in/spv/builtin-accessed-outside-entrypoint.spvasm

@@ -1,4 +1,4 @@
-;; Ensure builtin binding isn't removed by unused glPerVertex builtin culling when
+;; Ensure builtin binding isn't removed by unused gl_PerVertex builtin culling when
 ;; the builtin is used in a function defined after (in the SPIRV) the entry point.
 ;;
 ;; Generated from the following glsl via `glslc` (without `-O` flag):

naga/tests/in/spv/unnamed-gl-per-vertex.spvasm

@@ -1,7 +1,8 @@
 ;; Make sure that we don't have a validation error due to lacking capabilities
 ;; for bulltins such as ClipDistance when those builtin are not actually used.
 ;;
-;; This specifically doesn't name the glPerVertex struct to make sure we don't rely on checks for this name.
+;; This specifically doesn't name the gl_PerVertex struct to make sure we don't
+;; rely on checks for this name.
 ;;
 ;; See https://github.com/gfx-rs/wgpu/issues/4915
 ;;