Support @boolean and @character highlighting queries

CHANGELOG.md

@@ -6,6 +6,9 @@ The side-by-side display no longer pads the right column to fill the
 terminal. This improves display when the terminal is slightly shrunk,
 or when wide characters (e.g. emoji) are used.
 
+Improved syntax highlighting for boolean constants and character
+literals.
+
 ### Parsing
 
 Added Gleam, YAML and Zig support.

sample_files/compare.expected

@@ -35,7 +35,7 @@ sample_files/hack_before.php sample_files/hack_after.php
 b8c51005df7e1eaaeaf738a4353ac88f  -
 
 sample_files/haskell_before.hs sample_files/haskell_after.hs
-3472e360147d80639f50795dcc172648  -
+9c668c79e56f1e1cecf1c02759c195a9  -
 
 sample_files/helpful_before.el sample_files/helpful_after.el
 bce74573e003cc6b729a63a4bc34c4af  -

sample_files/haskell_after.hs

@@ -1,5 +1,8 @@
 
 foo x = x + 1
 
+bar _ = 'c'
+
 -- | Goodbye world
-bar y = y + 2
+isOne 1 = True
+isOne _ = False

sample_files/haskell_before.hs

@@ -1,5 +1,8 @@
 
 foo x = x + 1
 
+bar _ = 'c'
+
 -- | Hello world
-bar y = y + 1
+isOne 1 = True
+isOne _ = False

src/tree_sitter_parser.rs

@@ -621,6 +621,9 @@ fn tree_highlights(
     if let Some(idx) = config.highlight_query.capture_index_for_name("constant") {
         keyword_ish_capture_ids.push(idx);
     }
+    if let Some(idx) = config.highlight_query.capture_index_for_name("boolean") {
+        keyword_ish_capture_ids.push(idx);
+    }
     if let Some(idx) = config
         .highlight_query
         .capture_index_for_name("constant.builtin")
@@ -632,6 +635,9 @@ fn tree_highlights(
     if let Some(idx) = config.highlight_query.capture_index_for_name("string") {
         string_capture_ids.push(idx);
     }
+    if let Some(idx) = config.highlight_query.capture_index_for_name("character") {
+        string_capture_ids.push(idx);
+    }
 
     let mut type_capture_ids = vec![];
     if let Some(idx) = config.highlight_query.capture_index_for_name("type") {