DIBuilder: Encapsulate DIExpression's element type

Update for corresponding LLVM API change for
`DIBuilder::createExpression()`.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@218798 91177308-0d34-0410-b5e6-96231b3b80d8
Objective-C Modernizer. Patch to remove dangling space
before the semicolon wahen modernizing to use 
NS_ENUM/NS_OPTIONS macros. rdar://18498539


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@218809 91177308-0d34-0410-b5e6-96231b3b80d8