[CTS] Don't segfault when failing to load a kernel

If LoadSource fails, we don't exit immediately and continue running
the test. This then attempts to dereference a null shared pointer
and segfaults.

This by itself won't fix buggy test environments, but will make it
so that they fail the test with a sensible message rather than
crashing everything.

test/conformance/testing/include/uur/fixtures.h

@@ -323,7 +323,8 @@ struct urQueueTest : urContextTest {
 struct urHostPipeTest : urQueueTest {
  void SetUp() override {
  UUR_RETURN_ON_FATAL_FAILURE(urQueueTest::SetUp());
- uur::KernelsEnvironment::instance->LoadSource("foo", 0, il_binary);
+ UUR_RETURN_ON_FATAL_FAILURE(
+ uur::KernelsEnvironment::instance->LoadSource("foo", 0, il_binary));
  ASSERT_SUCCESS(uur::KernelsEnvironment::instance->CreateProgram(
  platform, context, device, *il_binary, &program));
 
@@ -1050,8 +1051,9 @@ std::string deviceTestWithParamPrinter<BoolTestParam>(
 struct urProgramTest : urQueueTest {
  void SetUp() override {
  UUR_RETURN_ON_FATAL_FAILURE(urQueueTest::SetUp());
- uur::KernelsEnvironment::instance->LoadSource(program_name, 0,
- il_binary);
+ UUR_RETURN_ON_FATAL_FAILURE(
+ uur::KernelsEnvironment::instance->LoadSource(program_name, 0,
+ il_binary));
  ASSERT_SUCCESS(uur::KernelsEnvironment::instance->CreateProgram(
  platform, context, device, *il_binary, &program));
  }
@@ -1071,8 +1073,9 @@ struct urProgramTest : urQueueTest {
 template <class T> struct urProgramTestWithParam : urContextTestWithParam<T> {
  void SetUp() override {
  UUR_RETURN_ON_FATAL_FAILURE(urContextTestWithParam<T>::SetUp());
- uur::KernelsEnvironment::instance->LoadSource(program_name, 0,
- il_binary);
+ UUR_RETURN_ON_FATAL_FAILURE(
+ uur::KernelsEnvironment::instance->LoadSource(program_name, 0,
+ il_binary));
  ASSERT_SUCCESS(uur::KernelsEnvironment::instance->CreateProgram(
  this->platform, this->context, this->device, *il_binary, &program));
  }