!905 Bugfix: check pricision loss when cast from int64 to bool

From: @hugo1
Reviewed-by: @xchu42,@wqtshg
Signed-off-by: @ji_chen

ge/graph/common/transop_util.cc

@@ -23,7 +23,10 @@
 namespace {
 const int kInvalidTransopDataIndex = -1;
 const int kTransOpOutIndex = 0;
-std::map<ge::DataType, ge::DataType> precision_loss_transfer_map = {{ge::DT_FLOAT, ge::DT_BOOL}};
+std::map<ge::DataType, ge::DataType> precision_loss_transfer_map = {
+  {ge::DT_FLOAT, ge::DT_BOOL},
+  {ge::DT_INT64, ge::DT_BOOL}
+};
 }  // namespace
 
 namespace ge {