Fix semantic token defaultLibrary modifier casing

jekyll/semantic-highlighting.markdown

@@ -43,7 +43,7 @@ contained in the default list.
 | Method calls with any syntax  | method | |
 | Constant references (including classes and modules)  | namespace | We don't yet differentiate between module and class references |
 | Method definition  | method.declaration | |
-| self  | variable.default_library | |
+| self  | variable.defaultLibrary | |
 | Method, block and lambda arguments | parameter | |
 | Class declaration | class.declaration | |
 | Module declaration | class.declaration | |

lib/ruby_lsp/listeners/semantic_highlighting.rb

@@ -162,7 +162,7 @@ def on_rest_parameter_node_enter(node)
 
       #: (Prism::SelfNode node) -> void
       def on_self_node_enter(node)
-        @response_builder.add_token(node.location, :variable, [:default_library])
+        @response_builder.add_token(node.location, :variable, [:defaultLibrary])
       end
 
       #: (Prism::LocalVariableWriteNode node) -> void

lib/ruby_lsp/response_builders/semantic_highlighting.rb

@@ -43,7 +43,7 @@ class UndefinedTokenType < StandardError; end
         async: 6,
         modification: 7,
         documentation: 8,
-        default_library: 9,
+        defaultLibrary: 9,
       }.freeze #: Hash[Symbol, Integer]
 
       #: ((^(Integer arg0) -> Integer | Prism::CodeUnitsCache) code_units_cache) -> void
@@ -184,8 +184,8 @@ def compute_delta(token)
         end
 
         # Encode an array of modifiers to positions onto a bit flag
-        # For example, [:default_library] will be encoded as
-        # 0b1000000000, as :default_library is the 10th bit according
+        # For example, [:defaultLibrary] will be encoded as
+        # 0b1000000000, as :defaultLibrary is the 10th bit according
         # to the token modifiers index map.
         #: (Array[Integer] modifiers) -> Integer
         def encode_modifiers(modifiers)

test/requests/semantic_highlighting_expectations_test.rb

@@ -82,6 +82,15 @@ class Post
     end
   end
 
+  def test_provider_uses_lsp_default_library_modifier_casing
+    token_modifiers = JSON.parse(
+      RubyLsp::Requests::SemanticHighlighting.provider.to_json,
+    ).dig("legend", "tokenModifiers")
+
+    assert_includes(token_modifiers, "defaultLibrary")
+    refute_includes(token_modifiers, "default_library")
+  end
+
   private
 
   def create_semantic_highlighting_addon