vim: Fix clipping when navigating over inlay hints (#22813)

This fixes the issue described in this comment:
https://github.com/zed-industries/zed/pull/22439#issuecomment-2563896422

Essentially, we'd clip in the wrong direction when there were multi-line
inlay hints.

It also fixes inline completions for non-Zeta-providers showing up in
normal mode.

Release Notes:

- N/A

crates/editor/src/display_map.rs

@@ -42,7 +42,7 @@ use fold_map::{FoldMap, FoldSnapshot};
 use gpui::{
     AnyElement, Font, HighlightStyle, LineLayout, Model, ModelContext, Pixels, UnderlineStyle,
 };
-pub(crate) use inlay_map::Inlay;
+pub use inlay_map::Inlay;
 use inlay_map::{InlayMap, InlaySnapshot};
 pub use inlay_map::{InlayOffset, InlayPoint};
 use invisibles::{is_invisible, replacement};

crates/editor/src/display_map/inlay_map.rs

@@ -33,7 +33,7 @@ enum Transform {
 }
 
 #[derive(Debug, Clone)]
-pub(crate) struct Inlay {
+pub struct Inlay {
     pub(crate) id: InlayId,
     pub position: Anchor,
     pub text: text::Rope,

crates/editor/src/editor.rs

@@ -258,7 +258,7 @@ pub fn render_parsed_markdown(
 }
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub(crate) enum InlayId {
+pub enum InlayId {
     InlineCompletion(usize),
     Hint(usize),
 }
@@ -3592,7 +3592,7 @@ impl Editor {
         }
     }
 
-    fn splice_inlays(
+    pub fn splice_inlays(
         &self,
         to_remove: Vec<InlayId>,
         to_insert: Vec<Inlay>,
@@ -4883,7 +4883,7 @@ impl Editor {
         }
     }
 
-    fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
+    pub fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
         Some(self.inline_completion_provider.as_ref()?.provider.clone())
     }
 

crates/editor/src/inline_completion_tests.rs

@@ -325,6 +325,10 @@ impl InlineCompletionProvider for FakeInlineCompletionProvider {
         false
     }
 
+    fn show_completions_in_normal_mode() -> bool {
+        false
+    }
+
     fn is_enabled(
         &self,
         _buffer: &gpui::Model<language::Buffer>,