[Offload] Fix broken tablegen test after #140879 (#141796)

Author: RossBrunton

offload/test/tools/offload-tblgen/default_returns.td

@@ -34,7 +34,7 @@ def : Function {
 
 // CHECK-VALIDATION: FunctionA_val
 // CHECK-VALIDATION: if (NULL == ParamHandle)
-// CHECK-VALIDATION-NEXT: return OL_ERRC_INVALID_NULL_HANDLE;
+// CHECK-VALIDATION-NEXT: return createOffloadError(error::ErrorCode::INVALID_NULL_HANDLE, "validation failure: NULL == ParamHandle");
 // CHECK-VALIDATION: if (NULL == ParamPointer)
-// CHECK-VALIDATION-NEXT: return OL_ERRC_INVALID_NULL_POINTER;
+// CHECK-VALIDATION-NEXT: return createOffloadError(error::ErrorCode::INVALID_NULL_POINTER, "validation failure: NULL == ParamPointer");
 // CHECK-VALIDATION-NOT: if (NULL == ParamPointerOpt)

offload/test/tools/offload-tblgen/entry_points.td

@@ -28,7 +28,7 @@ def : Function {
 // CHECK: if (offloadConfig().TracingEnabled) {
 // CHECK-NEXT: "---> FunctionA";
 
-// CHECK: Result = FunctionA_val(ParamA, ParamB);
+// CHECK: Result = llvmErrorToOffloadError(FunctionA_val(ParamA, ParamB));
 
 // Tracing should construct a param struct for printing
 // CHECK: if (offloadConfig().TracingEnabled) {