ole32: Load cached data in the data cache into a STGMEDIUM type so it can be treated the same as set data.

for the future possiblity to add entries with IOleCache::Cache and
IOleCache::SetData.

- create helper function to setup exception frame and run the test
- lookup function ptr only once
- make "code data" const
- reuse global exception counter
- change alignment test to use stack address to generate an alignment exception. This avoids
  the need to pass an argument, so it can use the created helper function.
  (as the stack is (at least) 4 byte aligned, this works equally well)

This reverts commit 167b83c2.

This reverts commit 478a414e.

This reverts commit a7518f6f.

This reverts commit 18546a65.

This reverts commit 274df6ef.

This reverts commit 16b1e046.

This reverts commit 5c400871.