Fix up some mismatched SFINAE conditionsin shared_ptr; some used '_Tp*', others used 'element_type *'. Today, they're the same - but soon they won't be. No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@291572 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed