Rollup merge of #92743 - bjorn3:less_symbol_intern, r=camelid

Use pre-interned symbols in a couple of places

Re-open of https://github.com/rust-lang/rust/pull/92733 as bors glitched.

compiler/rustc_span/src/symbol.rs

@@ -208,6 +208,7 @@ symbols! {
         LinkedList,
         LintPass,
         Mutex,
+        N,
         None,
         Ok,
         Option,
@@ -327,6 +328,7 @@ symbols! {
         array,
         arrays,
         as_ptr,
+        as_ref,
         as_str,
         asm,
         asm_const,
@@ -593,6 +595,7 @@ symbols! {
         enable,
         enclosing_scope,
         encode,
+        end,
         env,
         eq,
         ermsb_target_feature,