Blender Git Loki

Cleanup: Fix build warning with MSVC

`IDTypeForeachCacheFunctionCallback` lists the `flags` parameter
as `uint`, having these functions use `eIDTypeInfoCacheCallbackFlags`
results in the following warning when building with MSVC:

warning C4028: formal parameter 4 different from declaration

This change resolves this warning by changing the parameter to
the appropriate type.