Roll third_party/spirv-cross/ bad9dab8d..bdbef7b1f (3 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Cross/+log/bad9dab8df6f..bdbef7b1f398

$ git log bad9dab8d..bdbef7b1f --date=short --no-merges --format='%ad %ae %s'
2020-09-04 cwallez Fix -Wduplicate-enum and -Wrange-for-analysis.
2020-09-04 post Roll glslang/SPIRV-Tools deps.
2020-09-04 post Handle OpUndef %void.

Created with:
  roll-dep third_party/spirv-cross

TBR=enga@chromium.org
Bug: None

Change-Id: I94afddf93b187bbde37c4e7088231d4f28959403
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/28422
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
diff --git a/DEPS b/DEPS
index d93a1ee4..a04cc80 100644
--- a/DEPS
+++ b/DEPS
@@ -66,7 +66,7 @@
 
   # SPIRV-Cross
   'third_party/spirv-cross': {
-    'url': '{chromium_git}/external/github.com/KhronosGroup/SPIRV-Cross@bad9dab8df6f2e6b80da9693db247b9357aebd2f',
+    'url': '{chromium_git}/external/github.com/KhronosGroup/SPIRV-Cross@bdbef7b1f3982fe99a62d076043036abe6dd6d80',
     'condition': 'dawn_standalone',
   },