Always import all tracing macros for the entire crate instead of piecemeal by module

Author: oli-obk

compiler/rustc_ast/src/lib.rs

@@ -26,6 +26,9 @@
 #[macro_use]
 extern crate rustc_macros;
 
+#[macro_use]
+extern crate tracing;
+
 pub mod util {
     pub mod classify;
     pub mod comments;

compiler/rustc_ast/src/util/literal.rs

@@ -9,7 +9,6 @@ use rustc_span::symbol::{kw, sym, Symbol};
 use rustc_span::Span;
 
 use std::ascii;
-use tracing::debug;
 
 pub enum LitError {
     NotLiteral,

compiler/rustc_ast_lowering/src/index.rs

@@ -11,8 +11,6 @@ use rustc_session::Session;
 use rustc_span::source_map::SourceMap;
 use rustc_span::{Span, DUMMY_SP};
 
-use tracing::debug;
-
 /// A visitor that walks over the HIR and collects `Node`s into a HIR map.
 pub(super) struct NodeCollector<'a, 'hir> {
     /// Source map

compiler/rustc_ast_lowering/src/path.rs

@@ -13,7 +13,6 @@ use rustc_span::symbol::{kw, Ident};
 use rustc_span::{BytePos, Span, DUMMY_SP};
 
 use smallvec::smallvec;
-use tracing::debug;
 
 impl<'a, 'hir> LoweringContext<'a, 'hir> {
     #[instrument(level = "trace", skip(self))]

compiler/rustc_ast_passes/src/feature_gate.rs

@@ -11,8 +11,6 @@ use rustc_span::source_map::Spanned;
 use rustc_span::symbol::sym;
 use rustc_span::Span;
 
-use tracing::debug;
-
 macro_rules! gate_feature_fn {
     ($visitor: expr, $has_feature: expr, $span: expr, $name: expr, $explain: expr, $help: expr) => {{
         let (visitor, has_feature, span, name, explain, help) =

compiler/rustc_ast_passes/src/lib.rs

@@ -12,6 +12,9 @@
 #![feature(let_else)]
 #![recursion_limit = "256"]
 
+#[macro_use]
+extern crate tracing;
+
 pub mod ast_validation;
 mod errors;
 pub mod feature_gate;

compiler/rustc_borrowck/src/diagnostics/outlives_suggestion.rs

@@ -6,7 +6,6 @@ use rustc_errors::Diagnostic;
 use rustc_middle::ty::RegionVid;
 use smallvec::SmallVec;
 use std::collections::BTreeMap;
-use tracing::debug;
 
 use crate::MirBorrowckCtxt;
 

compiler/rustc_builtin_macros/src/lib.rs

@@ -16,6 +16,9 @@
 
 extern crate proc_macro;
 
+#[macro_use]
+extern crate tracing;
+
 use crate::deriving::*;
 
 use rustc_expand::base::{MacroExpanderFn, ResolverExpand, SyntaxExtensionKind};

compiler/rustc_builtin_macros/src/test.rs

@@ -335,7 +335,7 @@ pub fn expand_test_or_bench(
     // extern crate test
     let test_extern = cx.item(sp, test_id, ast::AttrVec::new(), ast::ItemKind::ExternCrate(None));
 
-    tracing::debug!("synthetic test item:\n{}\n", pprust::item_to_string(&test_const));
+    debug!("synthetic test item:\n{}\n", pprust::item_to_string(&test_const));
 
     if is_stmt {
         vec![

compiler/rustc_builtin_macros/src/test_harness.rs

@@ -15,7 +15,6 @@ use rustc_span::{Span, DUMMY_SP};
 use rustc_target::spec::PanicStrategy;
 use smallvec::{smallvec, SmallVec};
 use thin_vec::thin_vec;
-use tracing::debug;
 
 use std::{iter, mem};