Prefix fluent resources with interface_

compiler/rustc_error_messages/locales/en-US/interface.ftl

@@ -5,39 +5,39 @@ interface_ferris_identifier =
 interface_emoji_identifier =
     identifiers cannot contain emoji: `{$ident}`
 
-mixed_bin_crate =
+interface_mixed_bin_crate =
     cannot mix `bin` crate type with others
 
-mixed_proc_macro_crate =
+interface_mixed_proc_macro_crate =
     cannot mix `proc-macro` crate type with others
 
-proc_macro_doc_without_arg =
+interface_proc_macro_doc_without_arg =
     Trying to document proc macro crate without passing '--crate-type proc-macro to rustdoc
     .warn = The generated documentation may be incorrect
 
-error_writing_dependencies =
+interface_error_writing_dependencies =
     error writing dependencies to `{$path}`: {$error}
 
-input_file_would_be_overwritten =
+interface_input_file_would_be_overwritten =
     the input file "{$path}" would be overwritten by the generated executable
 
-generated_file_conflicts_with_directory =
+interface_generated_file_conflicts_with_directory =
     the generated executable for the input file "{$input_path}" conflicts with the existing directory "{$dir_path}"
 
-temps_dir_error =
+interface_temps_dir_error =
     failed to find or create the directory specified by `--temps-dir`
 
-out_dir_error =
+interface_out_dir_error =
     failed to find or create the directory specified by `--out-dir`
 
-cant_emit_mir =
+interface_cant_emit_mir =
     could not emit MIR: {$error}
 
-rustc_error_fatal =
+interface_rustc_error_fatal =
     fatal error triggered by #[rustc_error]
 
-rustc_error_unexpected_annotation =
+interface_rustc_error_unexpected_annotation =
     unexpected annotation used with `#[rustc_error(...)]!
 
-failed_writing_file =
+interface_failed_writing_file =
     failed to write file {$path}: {$error}"