Add tests for global variables with ? and !

Author: sebastiaanspeck

tests/languages/magik/global-variable_feature.test

@@ -1,11 +1,19 @@
 sw:gis_program_manager
 sw:|gis_program_manager|
+sw:question?
+sw:|question?|
+sw:sys!system
+sw:|sys!system|
 
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 [
 	["global-variable", "sw:gis_program_manager"],
-	["global-variable", "sw:|gis_program_manager|"]
+	["global-variable", "sw:|gis_program_manager|"],
+	["global-variable", "sw:question?"],
+	["global-variable", "sw:|question?|"],
+	["global-variable", "sw:sys!system"],
+	["global-variable", "sw:|sys!system|"]
 ]
 
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