Various tests failing since
https://build.chromium.org/p/chromium.gpu.fyi/builders/Linux%20Release%20%28AMD%20R7%20240%29/builds/3455

Notably angle_end2end_tests fails:
/b/c/b/Linux_Release__AMD_R7_240_/src/out/Release/angle_end2end_tests --test-launcher-bot-mode --use-gpu-in-tests --test-launcher-retry-limit=0 --test-launcher-summary-output=/tmp/tmpcpMjRJ.json
X Error of failed request:  GLXBadContext
  Major opcode of failed request:  155 (GLX)
  Minor opcode of failed request:  4 (X_GLXDestroyContext)
  Serial number of failed request:  61
  Current serial number in output stream:  64

There is no angle change in the blamelist.

gl_unittests also fails in a glx thing:
...
#21 0x7f987c9d41c4 <unknown>
#22 0x7f987c9a0a55 <unknown>
#23 0x00000055be59 gl::GLContextGLX::Initialize()
#24 0x00000037daa3 gl::InitializeGLContext()
#25 0x0000005596a5 gl::init::CreateGLContext()
#26 0x0000002b81ed gl::GLImageTest<>::SetUp()
#27 0x000000334b61 testing::Test::Run()
#28 0x0000003353d0 testing::TestInfo::Run()
#29 0x0000003358b7 testing::TestCase::Run()
#30 0x00000033bda7 testing::internal::UnitTestImpl::RunAllTests()
#31 0x00000033ba27 testing::UnitTest::Run()
#32 0x0000005910a2 base::TestSuite::Run()
#33 0x0000005a55f7 base::(anonymous namespace)::LaunchUnitTestsInternal()
#34 0x0000005a546b base::LaunchUnitTests()
#35 0x0000002dad92 main
#36 0x7f9881515830 __libc_start_main
#37 0x0000002b502a _start