Fix special get syntax with parentheses having an extra space

Close #314

Author: NathanLovato

src/node_kind.rs

@@ -297,6 +297,7 @@ const MAP_TREE_SITTER_TO_GDSCRIPT_NODE_KIND: &[(&str, GDScriptNodeKind)] = &[
     ("typed_default_parameter", GDScriptNodeKind::Parameter),
     ("(", GDScriptNodeKind::TokenParen),
     (")", GDScriptNodeKind::TokenParen),
+    ("()", GDScriptNodeKind::TokenParen),
     ("[", GDScriptNodeKind::TokenBracket),
     ("]", GDScriptNodeKind::TokenBracket),
     ("{", GDScriptNodeKind::TokenBrace),

tests/expected/setget.gd

@@ -3,7 +3,7 @@
 var a: float = 10.0:
 	set(value):
 		a = value
-	get:
+	get():
 		return a
 var second: int = 10
 

tests/input/setget.gd

@@ -2,7 +2,7 @@
 # Tests both setter and getter syntaxes.
 var  a  :  float  =  10.0   :
 	set(  value   )  :    a = value
-	get   :    return a
+	get()   :    return a
 var second: int = 10
 
 var b: float = 10.0: