Add a public accessor for GlobalCtors in CodeGenModule
Add a public accessor for GlobalCtors in CodeGenModule

Summary:
In a JIT context it is useful to be able to access the GlobalCtors
and especially clear them once they have been emitted and called.
This adds a public method to be able to access the list.

Subscribers: yaron.keren, cfe-commits

Differential Revision: http://reviews.llvm.org/D6790

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@224982 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang