[clang-tools-extra] [clangd] Support .clangd command line modifications for C++ modules (PR #122606)

[Petr Polezhaev via cfe-commits]

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@@ -830,6 +830,16 @@ bool OverlayCDB::setCompileCommand(PathRef File,
   return true;
 }
 
+std::unique_ptr<ProjectModules>
+OverlayCDB::getProjectModules(PathRef File) const {
+  auto MDB = DelegatingCDB::getProjectModules(File);
+  MDB->setCommandMangler([&Mangler = Mangler](tooling::CompileCommand &Command,
+                                              PathRef CommandPath) {
+    Mangler(Command, CommandPath);
+  });
+  return std::move(MDB);
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petr-polezhaev wrote:

:disappointed: Can't do anything about it - I don't have write permissions. Can you revert it and I'll resubmit the review?

https://github.com/llvm/llvm-project/pull/122606