Added some more fixes to c# highlighting

queries/c_sharp/highlights.scm

@@ -2,6 +2,9 @@
 (method_declaration
   name: (identifier) @method)
 
+(method_declaration
+  type: (identifier) @type)
+
 ; This would be nice but fails in some cases
 ; https://github.com/nvim-treesitter/nvim-treesitter/pull/203
 ; (invocation_expression
@@ -21,6 +24,10 @@
   (parameter
    name: (identifier) @parameter))
 
+(parameter_list
+  (parameter
+   type: (identifier) @type))
+
 (integer_literal) @number
 (real_literal) @float
 
@@ -50,6 +57,9 @@
 (property_declaration
   name: (identifier) @property)
 
+(catch_declaration
+  type: (identifier) @type)
+
 (interface_declaration
   name: (identifier) @type)
 (class_declaration
@@ -201,5 +211,7 @@
  "interface"
  "namespace"
  "struct"
+ "get"
+ "set"
 ] @keyword