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authorbors <bors@rust-lang.org>2025-08-13 22:52:17 +0000
committerbors <bors@rust-lang.org>2025-08-13 22:52:17 +0000
commite7d8d34eae23bd91164510b03e6b239ccbcfdf07 (patch)
tree3cf1badc9a1556f2af394445e9055acf12ca6069 /compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp
parentcf42ac6bf2e8effc1d84bdaec16531a6cbb42f62 (diff)
parentcb3dedc6244493f2c36bf3d8f115e120faa91710 (diff)
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Auto merge of #144793 - petrochenkov:extprel3, r=davidtwco
resolve: Split extern prelude into two scopes

One scope for `extern crate` items and another for `--extern` options, with the former shadowing the latter.

If in a single scope some things can overwrite other things, especially with ad hoc restrictions like `MacroExpandedExternCrateCannotShadowExternArguments`, then it's not really a single scope.
So this PR splits `Scope::ExternPrelude` into two cleaner scopes.

This is similar to how https://github.com/rust-lang/rust/pull/144131 splits module scope into two scopes for globs and non-globs, but simpler.
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