expand: Remove `ParseSess::missing_fragment_specifiers`

It was used for deduplicating some errors for legacy code which are mostly deduplicated even without that, but at cost of global mutable state, which is not a good tradeoff.

1 files changed, 0 insertions, 16 deletions

diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs
index eac6a33cf22..2a01b677e33 100644
--- a/compiler/rustc_interface/src/passes.rs
+++ b/compiler/rustc_interface/src/passes.rs
@@ -30,7 +30,6 @@ use rustc_resolve::{Resolver, ResolverArenas};
 use rustc_serialize::json;
 use rustc_session::config::{CrateType, Input, OutputFilenames, OutputType};
 use rustc_session::cstore::{MetadataLoader, MetadataLoaderDyn};
-use rustc_session::lint;
 use rustc_session::output::{filename_for_input, filename_for_metadata};
 use rustc_session::search_paths::PathKind;
 use rustc_session::{Limit, Session};
@@ -349,23 +348,8 @@ pub fn configure_and_expand(
             ecx.check_unused_macros();
         });
 
-        let mut missing_fragment_specifiers: Vec<_> = ecx
-            .sess
-            .parse_sess
-            .missing_fragment_specifiers
-            .borrow()
-            .iter()
-            .map(|(span, node_id)| (*span, *node_id))
-            .collect();
-        missing_fragment_specifiers.sort_unstable_by_key(|(span, _)| *span);
-
         let recursion_limit_hit = ecx.reduced_recursion_limit.is_some();
 
-        for (span, node_id) in missing_fragment_specifiers {
-            let lint = lint::builtin::MISSING_FRAGMENT_SPECIFIER;
-            let msg = "missing fragment specifier";
-            resolver.lint_buffer().buffer_lint(lint, node_id, span, msg);
-        }
         if cfg!(windows) {
             env::set_var("PATH", &old_path);
         }