Rename DiagnosticArg{,Map,Name,Value} as DiagArg{,Map,Name,Value}.

compiler/rustc_errors/src/translation.rs

@@ -1,6 +1,6 @@
 use crate::error::{TranslateError, TranslateErrorKind};
 use crate::snippet::Style;
-use crate::{DiagnosticArg, DiagnosticMessage, FluentBundle};
+use crate::{DiagArg, DiagnosticMessage, FluentBundle};
 use rustc_data_structures::sync::Lrc;
 pub use rustc_error_messages::FluentArgs;
 use std::borrow::Cow;
@@ -12,9 +12,7 @@ use std::error::Report;
 ///
 /// Typically performed once for each diagnostic at the start of `emit_diagnostic` and then
 /// passed around as a reference thereafter.
-pub fn to_fluent_args<'iter>(
-    iter: impl Iterator<Item = DiagnosticArg<'iter>>,
-) -> FluentArgs<'static> {
+pub fn to_fluent_args<'iter>(iter: impl Iterator<Item = DiagArg<'iter>>) -> FluentArgs<'static> {
     let mut args = if let Some(size) = iter.size_hint().1 {
         FluentArgs::with_capacity(size)
     } else {