feat: Make private editable completions configurable, disable by default

crates/ide_completion/src/config.rs

@@ -13,6 +13,7 @@ pub struct CompletionConfig {
     pub enable_postfix_completions: bool,
     pub enable_imports_on_the_fly: bool,
     pub enable_self_on_the_fly: bool,
+    pub enable_private_editable: bool,
     pub add_call_parenthesis: bool,
     pub add_call_argument_snippets: bool,
     pub snippet_cap: Option<SnippetCap>,

crates/ide_completion/src/context.rs

@@ -360,6 +360,9 @@ impl<'a> CompletionContext<'a> {
             None => return Visible::No,
         };
         if !vis.is_visible_from(self.db, module.into()) {
+            if !self.config.enable_private_editable {
+                return Visible::No;
+            }
             // If the definition location is editable, also show private items
             let root_file = defining_crate.root_file(self.db);
             let source_root_id = self.db.file_source_root(root_file);

crates/ide_completion/src/tests.rs

@@ -64,6 +64,7 @@ pub(crate) const TEST_CONFIG: CompletionConfig = CompletionConfig {
     enable_postfix_completions: true,
     enable_imports_on_the_fly: true,
     enable_self_on_the_fly: true,
+    enable_private_editable: true,
     add_call_parenthesis: true,
     add_call_argument_snippets: true,
     snippet_cap: SnippetCap::new(true),