Tracking issue for MCP 959: Remove the fluent files

[rustbot]

This is a tracking issue for MCP "Remove the fluent files" (rust-lang/compiler-team#959).

Note

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Steps

• Implement the MCP
• Adjust documentation
  • In the Rust Compiler Development Guide if applicable (e.g., for refactorings)
  • In the Rust Forge if applicable (e.g., for policy changes)
  • In the rustc book if applicable (e.g., for target tier or CLI changes)

Unresolved questions

• Repair functionality for -Ztranslate-additional-ftl
• How do we format very long / multiline diagnostics in a pretty way? Convert to inline diagnostics in rustc_incremental #152044 (comment)
• Bikeshed the name of the inline_fluent macro
• See if we can make inline_fluent handle arguments Convert to inline diagnostics in rustc_errors #152109 (comment)
• See if we can do something about We have quite different APIs for emitting a lint vs a hard error #121077
• whether it'd be nice to use r#"" strings when the parts of the error message needs escaping
• Detect duplicate messages in the same crate and extract them to a const
• Rename session_diagnostics.rs to diagnostics.rs

Implementation history

• Remove the diagnostic lints #150879
• Remove DiagMessage::Translated in favour of DiagMessage::Str #151326
• Factor out diagnostic slug checking from DiagnosticDerive  #151338
• Rewrite the #[derive(Diagnostic)] macro #151587
• Add extern crate core to diagnostic tests #151738
• Cleanup of #[derive(Diagnostic)] attribute parsers #151657
• Add inline syntax for diagnostic messages #151872
• Convert to inline diagnostics in rustc_attr_parsing #151944
• Convert to inline diagnostics in rustc_driver_impl #152028
• Convert to inline diagnostics in rustc_query_system #152041
• Convert to inline diagnostics in rustc_incremental #152044
• Convert to inline diagnostics in rustc_infer #152045
• Convert to inline diagnostics in rustc_interface #152047
• Convert to inline diagnostics in rustc_ty_utils #152065
• Convert to inline diagnostics in rustc_session #152066
• Convert to inline diagnostics in rustc_resolve #152068
• Convert to inline diagnostics in rustc_privacy #152069
• Convert to inline diagnostics in rustc_pattern_analysis #152070
• Convert to inline diagnostics in rustc_monomorphize #152072
• Convert to inline diagnostics in rustc_mir_dataflow #152073
• Convert to inline diagnostics in all codegen backends #152102
• Convert to inline diagnostics in rustc_ast_lowering #152105
• Convert to inline diagnostics in rustc_ast_passes #152106
• Convert to inline diagnostics in rustc_borrowck #152107
• Convert to inline diagnostics in rustc_expand #152108
• Convert to inline diagnostics in rustc_errors #152109
• Convert to inline diagnostics in rustc_mir_transform #152114
• Convert to inline diagnostics in rustc_trait_selection #152117
• Convert to inline diagnostics in rustc_codegen_ssa #152118
• Convert to inline diagnostics in rustc_metadata #152115
• Convert to inline diagnostics in rustc_middle #152119
• Convert to inline diagnostics in rustc_builtin_macros #152121
• Convert to inline diagnostics in rustc_mir_build #152126
• Hard code DEFAULT_LOCALE_RESOURCES in rustc_interface #152137
• Convert to inline diagnostics in rustc_hir_typeck #152142
• Convert to inline diagnostics in rustc_passes #152189
• Convert to inline diagnostics in rustc_const_eval #152186
• Convert to inline diagnostics in rustc_hir_analysis #152191
• Convert to inline diagnostics in rustc_lint #152217
• Convert to inline diagnostics in rustc_parse #152235
• Convert diagnostic style checks #152252
• Cleanup after removing all fluent files #152250

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[JonathanBrouwer]

@rustbot claim