[SE] Add getName method to Device class

[jprice]

BTW, I don't have commit access, so I'm afraid someone else will have to commit this on my behalf.

[jhen]

In D24240#536449, @jprice wrote:

BTW, I don't have commit access, so I'm afraid someone else will have to commit this on my behalf.

No problem. I'll take care of it.

streamexecutor/include/streamexecutor/Device.h

 
 class Stream;
 
 class Device {
 public:
   explicit Device(PlatformDevice *PDevice);
   virtual ~Device();
 
+  /// Gets the name of this device.
+  std::string getName() const { return PDevice->getName(); }
+
   /// Creates a kernel object for this device.
   template <typename KernelT>
   Expected<typename std::enable_if<std::is_base_of<KernelBase, KernelT>::value,
                                    KernelT>::type>
   createKernel(const MultiKernelLoaderSpec &Spec) {
     Expected<std::unique_ptr<PlatformKernelHandle>> MaybeKernelHandle =
         PDevice->createKernel(Spec);
     if (!MaybeKernelHandle) {

streamexecutor/lib/unittests/DeviceTest.cpp

do {                                                                         \
     se::Error E__ = E;                                                         \
     EXPECT_TRUE(static_cast<bool>(E__));                                       \
     consumeError(std::move(E__));                                              \
   } while (false)
 
 using llvm::ArrayRef;
 using llvm::MutableArrayRef;
 
+TEST_F(DeviceTest, GetName) {
+  EXPECT_EQ(Device.getName(), "SimpleHostPlatformDevice");
+}
+
 TEST_F(DeviceTest, AllocateAndFreeDeviceMemory) {
   se::Expected<se::GlobalDeviceMemory<int>> MaybeMemory =
       Device.allocateDeviceMemory<int>(10);
   EXPECT_TRUE(static_cast<bool>(MaybeMemory));
 }
 
 TEST_F(DeviceTest, AllocateAndFreeHostMemory) {
   se::Expected<int *> MaybeMemory = Device.allocateHostMemory<int>(10);