Don't repeat names in comments. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215848 91177308-0d34-0410-b5e6-96231b3b80d8
Don't repeat the function name in comments. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215849 91177308-0d34-0410-b5e6-96231b3b80d8
Return a std::unique_ptr to make the ownership explicit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215850 91177308-0d34-0410-b5e6-96231b3b80d8
getLazyIRModule always takes ownership. Make that explicit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215851 91177308-0d34-0410-b5e6-96231b3b80d8
Pass a std::uinque_ptr to ParseAssembly to make the ownership explicit. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215852 91177308-0d34-0410-b5e6-96231b3b80d8