[Support] json::Value construction from std::vector<T> and std::map<string,T>.

Summary: Previously this required a conversion to json::Array/json::Object first.

Reviewers: ioeric

Subscribers: kristina, llvm-commits

Differential Revision: https://reviews.llvm.org/D53385

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@344732 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed