Fix windows build.

Author: aarongreig

source/adapters/mock/ur_mock.cpp

@@ -36,7 +36,7 @@ ur_result_t mock_urPlatformGetInfo(void *pParams) {
         if (*params.ppPropValue) {
 #if defined(_WIN32)
             strncpy_s(reinterpret_cast<char *>(*params.ppPropValue),
-                      *params.ppropSize, null_platform_name,
+                      *params.ppropSize, mock_platform_name,
                       sizeof(mock_platform_name));
 #else
             strncpy(reinterpret_cast<char *>(*params.ppPropValue),

test/fuzz/CMakeLists.txt

@@ -28,7 +28,7 @@ function(add_fuzz_test name label)
                     DisableDeepBind=1)
         endif()
     else()
-        list(APPEND ENV_VARS UR_ADAPTERS_FORCE_LOAD=\"$<TARGET_FILE:ur_adapter_null>\")
+        list(APPEND ENV_VARS UR_ADAPTERS_FORCE_LOAD=\"$<TARGET_FILE:ur_adapter_mock>\")
     endif()
 
     add_test(NAME ${TEST_TARGET_NAME}

test/layers/validation/fixtures.hpp

@@ -134,7 +134,10 @@ inline ur_result_t genericSuccessCallback(void *) { return UR_RESULT_SUCCESS; };
 inline ur_result_t fakeContext_urContextCreate(void *pParams) {
     static std::atomic_int handle = 42;
     auto params = *static_cast<ur_context_create_params_t *>(pParams);
-    **params.pphContext = reinterpret_cast<ur_context_handle_t>(handle++);
+    // There are two casts because windows doesn't implicitly extend the 32 bit
+    // result of atomic_int::operator++.
+    **params.pphContext =
+        reinterpret_cast<ur_context_handle_t>(static_cast<uintptr_t>(handle++));
     return UR_RESULT_SUCCESS;
 }