Rollup merge of #134173 - onur-ozkan:allow-symbol-intern-string-literal, r=jieyouxu

allow `symbol_intern_string_literal` lint in test modules

Since #133545, `x check compiler --stage 1` no longer works because compiler test modules trigger `symbol_intern_string_literal` lint errors. Bootstrap shouldn't control when to ignore or enable this lint in the compiler tree (using `Kind != Test` was ineffective for obvious reasons).

Also, conditionally adding this rustflag invalidates the build cache between `x test` and other commands.

This PR removes the `Kind` check from bootstrap and handles it directly in the compiler tree in a more natural way.

compiler/rustc_parse/src/parser/tests.rs

@@ -1,3 +1,5 @@
+#![cfg_attr(not(bootstrap), allow(rustc::symbol_intern_string_literal))]
+
 use std::assert_matches::assert_matches;
 use std::io::prelude::*;
 use std::iter::Peekable;

compiler/rustc_parse/src/parser/tokenstream/tests.rs

@@ -1,3 +1,5 @@
+#![cfg_attr(not(bootstrap), allow(rustc::symbol_intern_string_literal))]
+
 use rustc_ast::token::{self, IdentIsRaw};
 use rustc_ast::tokenstream::{TokenStream, TokenTree};
 use rustc_span::{BytePos, Span, Symbol, create_default_session_globals_then};