add trailing commas in function calls

Author: shadr

queries/gdscript.scm

@@ -58,6 +58,7 @@
     "(" @append_hardline @append_indent_start
     ")" @prepend_hardline @prepend_indent_end
     (#multi_line_only!))
+(arguments ((_expression) @append_delimiter (#delimiter! ",") . ","? @do_nothing . (comment)? . ")") (#multi_line_only!))
 
 ; MULTI-LINE PARAMETERS (in function definitions)
 (parameters

tests/expected/func_multiline_calls.gd

@@ -2,25 +2,25 @@ func test():
 	print(
 		"Testing",
 		"multiline",
-		"print"
+		"print",
 	)
 
 	print(
 		"Testing",
 		"multiline",
-		"print"
+		"print",
 	)
 
 	print("Testing", "multiline", "print")
 
 	print(
 		"Testing",
 		"multiline",
-		"print"
+		"print",
 	)
 
 	print(
 		"Testing",
 		"multiline",
-		"print"
+		"print",
 	)

tests/expected/trailing_comma.gd

@@ -53,3 +53,10 @@ func bar(
 		b, # comment
 ):
 	pass
+
+
+func f():
+	foo(
+		1,
+		2,
+	)

tests/input/trailing_comma.gd

@@ -52,3 +52,10 @@ func bar(
 	b # comment
 ):
 	pass
+
+
+func f():
+	foo(
+		1,
+		2
+	)