Use a Vec in rustc_interface::Config::locale_resources

This allows a third-party tool to injects its own resources,
when receiving the config via `rustc_driver::Callbacks::config`.

compiler/rustc_driver_impl/src/lib.rs

@@ -321,7 +321,7 @@ fn run_compiler(
         output_dir: odir,
         ice_file,
         file_loader,
-        locale_resources: DEFAULT_LOCALE_RESOURCES,
+        locale_resources: DEFAULT_LOCALE_RESOURCES.to_vec(),
         lint_caps: Default::default(),
         psess_created: None,
         hash_untracked_state: None,

compiler/rustc_interface/src/interface.rs

@@ -311,7 +311,9 @@ pub struct Config {
     pub output_file: Option<OutFileName>,
     pub ice_file: Option<PathBuf>,
     pub file_loader: Option<Box<dyn FileLoader + Send + Sync>>,
-    pub locale_resources: &'static [&'static str],
+    /// The list of fluent resources, used for lints declared with
+    /// [`Diagnostic`](rustc_errors::Diagnostic) and [`LintDiagnostic`](rustc_errors::LintDiagnostic).
+    pub locale_resources: Vec<&'static str>,
 
     pub lint_caps: FxHashMap<lint::LintId, lint::Level>,
 

src/librustdoc/core.rs

@@ -262,7 +262,7 @@ pub(crate) fn create_config(
         output_file: None,
         output_dir: None,
         file_loader: None,
-        locale_resources: rustc_driver::DEFAULT_LOCALE_RESOURCES,
+        locale_resources: rustc_driver::DEFAULT_LOCALE_RESOURCES.to_vec(),
         lint_caps,
         psess_created: None,
         hash_untracked_state: None,

src/librustdoc/doctest.rs

@@ -139,7 +139,7 @@ pub(crate) fn run(dcx: DiagCtxtHandle<'_>, options: RustdocOptions) -> Result<()
         output_file: None,
         output_dir: None,
         file_loader: None,
-        locale_resources: rustc_driver::DEFAULT_LOCALE_RESOURCES,
+        locale_resources: rustc_driver::DEFAULT_LOCALE_RESOURCES.to_vec(),
         lint_caps,
         psess_created: None,
         hash_untracked_state: None,

tests/ui-fulldeps/run-compiler-twice.rs

@@ -65,7 +65,7 @@ fn compile(code: String, output: PathBuf, sysroot: PathBuf, linker: Option<&Path
         output_dir: None,
         ice_file: None,
         file_loader: None,
-        locale_resources: &[],
+        locale_resources: Vec::new(),
         lint_caps: Default::default(),
         psess_created: None,
         hash_untracked_state: None,