Roll third_party/glslang/src 6861ea4e10a1..343d4f6f1870 (3 commits)

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/6861ea4e10a1..343d4f6f1870


Created with:
  gclient setdep -r third_party/glslang/src@343d4f6f1870

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/glslang-angle-autoroll
Please CC jmadill@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: jmadill@google.com
Change-Id: I625957e125e9bc45a44a0fd95a86efceaa134e25
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2096202
Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 887d5dc..0d9db4d 100644
--- a/DEPS
+++ b/DEPS
@@ -25,7 +25,7 @@
   'vk_gl_cts_revision': 'a6b249819f7177821d4b7eefff36af07fef71825',
 
   # Current revision of glslang, the Khronos SPIRV compiler.
-  'glslang_revision': '6861ea4e10a1f9dbbab14daac1107528025126a7',
+  'glslang_revision': '343d4f6f187067933d7b3fa6532783f7f21898b6',
 
   # Current revision of googletest.
   # Note: this dep cannot be auto-rolled b/c of nesting.