add another test for promoteds-in-static https://github.com/rust-lang/rust/pull/119614 led to validation of promoteds recursing into statics. These statics can point to `static mut` and interior mutable `static` and do other things we don't allow in `const`, but promoteds are validated as `const`, so we get strange errors (saying "in `const`" when there is no const) and surprising validation failures. https://github.com/rust-lang/rust/pull/120960 fixes that; this here adds another test. r? ``@oli-obk`` Fixes https://github.com/rust-lang/rust/issues/120968
The Rust Programming Language
This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.
Note: this README is for users rather than contributors. If you wish to contribute to the compiler, you should read CONTRIBUTING.md instead.
Table of Contents
Quick Start
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Installing from Source
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