Move swift/codegen to misc/codegen

misc/codegen/templates/ql_test_class.mustache

@@ -0,0 +1,16 @@
+// generated by {{generator}}
+
+import {{elements_module}}
+import TestUtils
+
+from {{class_name}} x{{#properties}}, {{#type}}{{.}}{{/type}}{{^type}}string{{/type}} {{getter}}{{/properties}}
+where toBeTested(x) and not x.isUnknown()
+{{#properties}}
+{{#type}}
+and {{getter}} = x.{{getter}}()
+{{/type}}
+{{^type}}
+and if x.{{getter}}() then {{getter}} = "yes" else {{getter}} = "no"
+{{/type}}
+{{/properties}}
+select x{{#show_ql_class}}, x.getPrimaryQlClasses(){{/show_ql_class}}{{#properties}}, "{{getter}}:", {{getter}}{{/properties}}