[clang-tools-extra] [clangd] [C++20] [Modules] Introduce initial support for C++20 Modules (PR #66462)

[kadir çetinkaya via cfe-commits]

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@@ -146,6 +146,8 @@ class Checker {
   ClangdLSPServer::Options Opts;
   // from buildCommand
   tooling::CompileCommand Cmd;
+  std::unique_ptr<GlobalCompilationDatabase> BaseCDB;
+  std::unique_ptr<OverlayCDB> CDB;
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kadircet wrote:

can you also construct a `ModulesBuilder` here and populate `Inputs` with it when `Opts.ExperimentalModulesSupport` is set?

https://github.com/llvm/llvm-project/pull/66462