[llvm-rc] Add missing inputs for tag-icon-cursor.test.

This adds the missing input files used for this test, except for
the separate input files for specific error cases; matching
test input files were provided by Nico Weber.

The extra copying of files into the %t directory doesn't seem to
be necessary since that directory only ever is used for output here,
not for inputs.

Differential Revision: https://reviews.llvm.org/D46813

llvm-svn: 332297