Rollup merge of #136191 - klensy:const_a, r=compiler-errors

compiler: replace few consts arrays with statics to remove const dupes

Locally on `x86_64-pc-windows-msvc` -100kb for `rustc_driver.dll`

compiler/rustc_parse/src/lexer/unicode_chars.rs

@@ -8,7 +8,7 @@ use crate::errors::TokenSubstitution;
 use crate::token::{self, Delimiter};
 
 #[rustfmt::skip] // for line breaks
-pub(super) const UNICODE_ARRAY: &[(char, &str, &str)] = &[
+pub(super) static UNICODE_ARRAY: &[(char, &str, &str)] = &[
     ('
', "Line Separator", " "),
     ('
', "Paragraph Separator", " "),
     (' ', "Ogham Space mark", " "),