macros: change code block language

With `ignore (rust)` rather than `ignore (pseudo-Rust)` my editor
highlights the code in the block, which is nicer.

Signed-off-by: David Wood <[email protected]>

Author: davidtwco

compiler/rustc_macros/src/diagnostics/mod.rs

@@ -12,7 +12,7 @@ use synstructure::Structure;
 /// Implements `#[derive(SessionDiagnostic)]`, which allows for errors to be specified as a struct,
 /// independent from the actual diagnostics emitting code.
 ///
-/// ```ignore (pseudo-rust)
+/// ```ignore (rust)
 /// # extern crate rustc_errors;
 /// # use rustc_errors::Applicability;
 /// # extern crate rustc_span;
@@ -43,7 +43,7 @@ use synstructure::Structure;
 ///
 /// Then, later, to emit the error:
 ///
-/// ```ignore (pseudo-rust)
+/// ```ignore (rust)
 /// sess.emit_err(MoveOutOfBorrowError {
 ///     expected,
 ///     actual,
@@ -67,7 +67,7 @@ pub fn session_diagnostic_derive(s: Structure<'_>) -> TokenStream {
 /// suggestions to be specified as a structs or enums, independent from the actual diagnostics
 /// emitting code or diagnostic derives.
 ///
-/// ```ignore (pseudo-rust)
+/// ```ignore (rust)
 /// #[derive(SessionSubdiagnostic)]
 /// pub enum ExpectedIdentifierLabel<'tcx> {
 ///     #[label(slug = "parser-expected-identifier")]
@@ -104,7 +104,7 @@ pub fn session_diagnostic_derive(s: Structure<'_>) -> TokenStream {
 ///
 /// Then, later, to add the subdiagnostic:
 ///
-/// ```ignore (pseudo-rust)
+/// ```ignore (rust)
 /// diag.subdiagnostic(ExpectedIdentifierLabel::WithoutFound { span });
 ///
 /// diag.subdiagnostic(RawIdentifierSuggestion { span, applicability, ident });