Check x86_64 size assertions on aarch64, too

This makes it easier for contributors on aarch64 workstations (e.g. Macs) to
notice when these assertions have been violated.

compiler/rustc_parse/src/lexer/mod.rs

@@ -30,7 +30,7 @@ use unescape_error_reporting::{emit_unescape_error, escaped_char};
 //
 // This assertion is in this crate, rather than in `rustc_lexer`, because that
 // crate cannot depend on `rustc_data_structures`.
-#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
+#[cfg(all(any(target_arch = "x86_64", target_arch = "aarch64"), target_pointer_width = "64"))]
 rustc_data_structures::static_assert_size!(rustc_lexer::Token, 12);
 
 #[derive(Clone, Debug)]

compiler/rustc_parse/src/parser/attr_wrapper.rs

@@ -454,7 +454,7 @@ fn make_token_stream(
 }
 
 // Some types are used a lot. Make sure they don't unintentionally get bigger.
-#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
+#[cfg(all(any(target_arch = "x86_64", target_arch = "aarch64"), target_pointer_width = "64"))]
 mod size_asserts {
     use super::*;
     use rustc_data_structures::static_assert_size;

compiler/rustc_parse/src/parser/mod.rs

@@ -179,7 +179,7 @@ pub struct Parser<'a> {
 
 // This type is used a lot, e.g. it's cloned when matching many declarative macro rules with nonterminals. Make sure
 // it doesn't unintentionally get bigger.
-#[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))]
+#[cfg(all(any(target_arch = "x86_64", target_arch = "aarch64"), target_pointer_width = "64"))]
 rustc_data_structures::static_assert_size!(Parser<'_>, 264);
 
 /// Stores span information about a closure.