Auto merge of rust-lang#12402 - Veykril:feat-docs, r=Veykril

minor: Freshen up goto feature docs

Fixes rust-lang/rust-analyzer#2541

Author: bors

crates/ide/src/goto_declaration.rs

@@ -10,6 +10,9 @@ use crate::{FilePosition, NavigationTarget, RangeInfo};
 // Feature: Go to Declaration
 //
 // Navigates to the declaration of an identifier.
+//
+// This is currently the same as `Go to Definition` with the exception of outline modules where it
+// will navigate to the `mod name;` item declaration.
 pub(crate) fn goto_declaration(
     db: &RootDatabase,
     position: FilePosition,

crates/ide/src/goto_definition.rs

@@ -15,6 +15,8 @@ use syntax::{ast, AstNode, AstToken, SyntaxKind::*, SyntaxToken, TextRange, T};
 //
 // Navigates to the definition of an identifier.
 //
+// For outline modules, this will navigate to the source file of the module.
+//
 // |===
 // | Editor  | Shortcut
 //

crates/ide/src/goto_implementation.rs

@@ -11,7 +11,7 @@ use crate::{FilePosition, NavigationTarget, RangeInfo, TryToNav};
 
 // Feature: Go to Implementation
 //
-// Navigates to the impl block of structs, enums or traits. Also implemented as a code lens.
+// Navigates to the impl blocks of types.
 //
 // |===
 // | Editor  | Shortcut