insert into a partition datasource table with InMemoryCatalog after the partition location alter by alter command failed

If we use InMemoryCatalog, then we insert into a partition datasource table, which partition location has changed by `alter table t partition(a="xx") set location $newpath`, the insert operation is ok, and the data can be insert into $newpath, while if we then select partition from the table, it will not return the value we inserted.

The reason is that the InMemoryFileIndex to inferPartition by the table's rootPath, it does not track the user specific $newPath which provided by alter command.