Kernel Source Level debugger support 4/n

- adding DebugSurface allocation and setup
- unit tests refactors:
  - mock kernel with kernel debug option
  - separating fixtures to headers
  - added helper for getting internal-options kernels
    filenames

Change-Id: I7b6f4d46e2ab7cff0da8d5212483f44ae0d4be31

runtime/command_stream/command_stream_receiver.cpp

@@ -169,6 +169,11 @@ void CommandStreamReceiver::cleanupResources() {
         scratchAllocation = nullptr;
     }
 
+    if (debugSurface) {
+        memoryManager->freeGraphicsMemory(debugSurface);
+        debugSurface = nullptr;
+    }
+
     if (commandStream.getCpuBase()) {
         memoryManager->freeGraphicsMemory(commandStream.getGraphicsAllocation());
         commandStream.replaceGraphicsAllocation(nullptr);
@@ -220,4 +225,10 @@ void CommandStreamReceiver::initializeInstructionHeapCmdStreamReceiverReservedBl
     return PreemptionHelper::initializeInstructionHeapSipKernelReservedBlock(ih, *memoryManager->device);
 }
 
+GraphicsAllocation *CommandStreamReceiver::allocateDebugSurface(size_t size) {
+    UNRECOVERABLE_IF(debugSurface != nullptr);
+    debugSurface = memoryManager->allocateGraphicsMemory(size);
+    return debugSurface;
+}
+
 } // namespace OCLRT