Simplify Diagnostic structure

It's not entirely clear what subnode ranges should mean in the
presence of macros, so let's leave them out for now. We are not using
them heavily anyway.

1 files changed, 1 insertions, 2 deletions

diff --git a/crates/ra_hir_expand/src/diagnostics.rs b/crates/ra_hir_expand/src/diagnostics.rs
index 813fbf0e2..99209c6e8 100644
--- a/crates/ra_hir_expand/src/diagnostics.rs
+++ b/crates/ra_hir_expand/src/diagnostics.rs
@@ -16,13 +16,12 @@
 
 use std::{any::Any, fmt};
 
-use ra_syntax::{SyntaxNode, SyntaxNodePtr, TextRange};
+use ra_syntax::{SyntaxNode, SyntaxNodePtr};
 
 use crate::{db::AstDatabase, InFile};
 
 pub trait Diagnostic: Any + Send + Sync + fmt::Debug + 'static {
     fn message(&self) -> String;
-    fn highlight_range(&self) -> InFile<TextRange>;
     fn source(&self) -> InFile<SyntaxNodePtr>;
     fn as_any(&self) -> &(dyn Any + Send + 'static);
 }