Roll src/third_party/glslang/src 656650f461c8..2d70e98deab2 (1 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/656650f461c8..2d70e98deab2

git log 656650f461c8..2d70e98deab2 --date=short --first-parent --format='%ad %ae %s'
2020-02-06 johnkslang@users.noreply.github.com Merge pull request #2028 from ShchchowAMD/constant_expressions_array_mod

Created with:
  gclient setdep -r src/third_party/glslang/src@2d70e98deab2

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/glslang-chromium-autoroll
Please CC radial-bots+chrome-roll@google.com,cnorthrop@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

Bug: None
Tbr: radial-bots+chrome-roll@google.com,cnorthrop@google.com
Change-Id: Idfefe3ae6574bb045315397233dfaa922384bf12
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2041316Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#738918}

DEPS

@@ -956,7 +956,7 @@ deps = {
   },
 
   'src/third_party/glslang/src':
-    Var('chromium_git') + '/external/github.com/KhronosGroup/glslang.git' + '@' + '656650f461c8752f7ca018ac2005617329f12b7b',
+    Var('chromium_git') + '/external/github.com/KhronosGroup/glslang.git' + '@' + '2d70e98deab2b83147023642e7e00702be3065ce',
 
   'src/third_party/google_toolbox_for_mac/src': {
       'url': Var('chromium_git') + '/external/github.com/google/google-toolbox-for-mac.git' + '@' + Var('google_toolbox_for_mac_revision'),