64 bit Windows build shows different project tree

1. Using the MSVC 2010 compiler from the Windows SDK 7.1, build a 32 bit version and a 64 bit version of Qt Creator 2.8 branch.
2. In Creator's repository, check out revision v2.5.0.
3. In each of the Creators from step 1, open qtcreator.pro from the repository from step 2.
4. Compare the project trees.
   The 32 bit version, just like 32 and 64 bit versions on Linux, will show you:
   
   The 64 bit version will show you:
   

The project tree should be same, regardless of build architecture.

Found by Squish test tst_openqt_creator.