Boaz Brickner 87b9cab7b1 Add support for importing a trivial global C++ function (#5033) ...

ASTUnit is owned by `CompileSubcommand`, passed through `Unit` to be
populated in `ImportCppFiles()` and used via `SemIR::File`.
When generating the AST, pass `-x c++` args to compile C++ (temporary
until we pass args properly).
`Cpp` namespace is marked as a special namespace and has dedicated logic
in `LookupNameInExactScope()`.
The logic for importing declarations from C++ to Carbon is in
`import_cpp.cpp`, but we're likely to want to refactor this
signfiicantly over time as it grows (perhaps a dedicated directory?).

Part of #4666.

2025-03-03 10:38:19 +00:00

..

cpp/no_prelude

Add support for importing a trivial global C++ function (#5033)

2025-03-03 10:38:19 +00:00