Rename `{create,emit}_warning` as `{create,emit}_warn`.

For consistency with `warn`/`struct_warn`, and also `{create,emit}_err`,
all of which use an abbreviated form.

3 files changed, 7 insertions, 8 deletions

diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs
index ce76c2cba93..97956404120 100644
--- a/compiler/rustc_interface/src/passes.rs
+++ b/compiler/rustc_interface/src/passes.rs
@@ -254,7 +254,7 @@ fn configure_and_expand(
     }
 
     if is_proc_macro_crate && sess.panic_strategy() == PanicStrategy::Abort {
-        sess.dcx().emit_warning(errors::ProcMacroCratePanicAbort);
+        sess.dcx().emit_warn(errors::ProcMacroCratePanicAbort);
     }
 
     sess.time("maybe_create_a_macro_crate", || {
diff --git a/compiler/rustc_interface/src/queries.rs b/compiler/rustc_interface/src/queries.rs
index 9da806e0779..e66ea6f2ca9 100644
--- a/compiler/rustc_interface/src/queries.rs
+++ b/compiler/rustc_interface/src/queries.rs
@@ -213,9 +213,8 @@ impl<'tcx> Queries<'tcx> {
 
                 // Some other attribute.
                 Some(_) => {
-                    tcx.dcx().emit_warning(RustcErrorUnexpectedAnnotation {
-                        span: tcx.def_span(def_id),
-                    });
+                    tcx.dcx()
+                        .emit_warn(RustcErrorUnexpectedAnnotation { span: tcx.def_span(def_id) });
                 }
             }
         }
diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs
index 92a6445ed09..9fd44e46b31 100644
--- a/compiler/rustc_interface/src/util.rs
+++ b/compiler/rustc_interface/src/util.rs
@@ -431,7 +431,7 @@ pub fn collect_crate_types(session: &Session, attrs: &[ast::Attribute]) -> Vec<C
 
     base.retain(|crate_type| {
         if output::invalid_output_for_target(session, *crate_type) {
-            session.dcx().emit_warning(errors::UnsupportedCrateTypeForTarget {
+            session.dcx().emit_warn(errors::UnsupportedCrateTypeForTarget {
                 crate_type: *crate_type,
                 target_triple: &session.opts.target_triple,
             });
@@ -507,16 +507,16 @@ pub fn build_output_filenames(attrs: &[ast::Attribute], sess: &Session) -> Outpu
             let unnamed_output_types =
                 sess.opts.output_types.values().filter(|a| a.is_none()).count();
             let ofile = if unnamed_output_types > 1 {
-                sess.dcx().emit_warning(errors::MultipleOutputTypesAdaption);
+                sess.dcx().emit_warn(errors::MultipleOutputTypesAdaption);
                 None
             } else {
                 if !sess.opts.cg.extra_filename.is_empty() {
-                    sess.dcx().emit_warning(errors::IgnoringExtraFilename);
+                    sess.dcx().emit_warn(errors::IgnoringExtraFilename);
                 }
                 Some(out_file.clone())
             };
             if sess.io.output_dir != None {
-                sess.dcx().emit_warning(errors::IgnoringOutDir);
+                sess.dcx().emit_warn(errors::IgnoringOutDir);
             }
 
             let out_filestem =