Add potential Godot bug test case regarding multiline arr/dict patterns

Author: Scony

tests/potential-godot-bugs/match_w_multiline_arr_n_dict_85867.gd

@@ -0,0 +1,15 @@
+func foo(x):
+match x:
+[1, 2]: # ok
+pass
+{"a": 1}: # ok
+pass
+[ # Parse Error: Expected expression for match pattern.
+2,
+3
+]:
+pass
+{ # Parse Error: Expected expression as key for dictionary pattern.
+"a": 1
+}:
+pass