internal: Make TryToNav trait public

Currently there is no proper way to get a target FileRange for a given
Definition.

crates/ide/src/lib.rs

@@ -79,7 +79,7 @@ use syntax::SourceFile;
 use triomphe::Arc;
 use view_memory_layout::{view_memory_layout, RecursiveMemoryLayout};
 
-use crate::navigation_target::{ToNav, TryToNav};
+use crate::navigation_target::ToNav;
 
 pub use crate::{
     annotations::{Annotation, AnnotationConfig, AnnotationKind, AnnotationLocation},
@@ -104,7 +104,7 @@ pub use crate::{
         SymbolInformationKind,
     },
     move_item::Direction,
-    navigation_target::{NavigationTarget, UpmappingResult},
+    navigation_target::{NavigationTarget, TryToNav, UpmappingResult},
     prime_caches::ParallelPrimeCachesProgress,
     references::ReferenceSearchResult,
     rename::RenameError,

crates/ide/src/navigation_target.rs

@@ -76,7 +76,7 @@ pub(crate) trait ToNav {
     fn to_nav(&self, db: &RootDatabase) -> UpmappingResult<NavigationTarget>;
 }
 
-pub(crate) trait TryToNav {
+pub trait TryToNav {
     fn try_to_nav(&self, db: &RootDatabase) -> Option<UpmappingResult<NavigationTarget>>;
 }