[PATCH] D38048: [clangd] Add textDocument/signatureHelp

[Raoul Wols via Phabricator via cfe-commits]

rwols created this revision.

Makes clangd respond to a client's "textDocument/signatureHelp" request by
presenting function/method overloads.
Still need to add tests.
Also, there is duplicate code in clangd::codeComplete and clangd::signatureHelp
now, maybe refactor this to a common function?


https://reviews.llvm.org/D38048

Files:
  clangd/ClangdLSPServer.cpp
  clangd/ClangdServer.cpp
  clangd/ClangdServer.h
  clangd/ClangdUnit.cpp
  clangd/ClangdUnit.h
  clangd/Protocol.cpp
  clangd/Protocol.h
  clangd/ProtocolHandlers.cpp
  clangd/ProtocolHandlers.h

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