Driver: use the canonical static library naming
On Windows, static libraries are named lib<name>.lib while import libraries are
named <name>.lib. Use the appropriate naming on itanium and msvc environments.
This is setup properly so that if a dynamic builtins is used on Windows, it
would do the right thing, although this is not currently wired through the
driver (i.e. there is no equivalent to -{shared,static}-gcc).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@280169
91177308-0d34-0410-b5e6-
96231b3b80d8