Re-export more `rustc_span::symbol` things from `rustc_span`.

`rustc_span::symbol` defines some things that are re-exported from
`rustc_span`, such as `Symbol` and `sym`. But it doesn't re-export some
closely related things such as `Ident` and `kw`. So you can do `use
rustc_span::{Symbol, sym}` but you have to do `use
rustc_span::symbol::{Ident, kw}`, which is inconsistent for no good
reason.

This commit re-exports `Ident`, `kw`, and `MacroRulesNormalizedIdent`,
and changes many `rustc_span::symbol::` qualifiers in `compiler/` to
`rustc_span::`. This is a 200+ net line of code reduction, mostly
because many files with two `use rustc_span` items can be reduced to
one.

1 files changed, 1 insertions, 2 deletions

diff --git a/compiler/rustc_lint/src/context.rs b/compiler/rustc_lint/src/context.rs
index d8d901698d6..50bb1fb942e 100644
--- a/compiler/rustc_lint/src/context.rs
+++ b/compiler/rustc_lint/src/context.rs
@@ -23,9 +23,8 @@ use rustc_session::lint::{
     FutureIncompatibleInfo, Level, Lint, LintBuffer, LintExpectationId, LintId,
 };
 use rustc_session::{LintStoreMarker, Session};
-use rustc_span::Span;
 use rustc_span::edit_distance::find_best_match_for_names;
-use rustc_span::symbol::{Ident, Symbol, sym};
+use rustc_span::{Ident, Span, Symbol, sym};
 use tracing::debug;
 use {rustc_abi as abi, rustc_hir as hir};