Add testcase for #14383 (#14957)

tests/arc/dmodule.nim

@@ -0,0 +1,23 @@
+type
+  MinKind* = enum
+    minDictionary
+    minBool
+  MinValue* = object
+    case kind*: MinKind
+    of minDictionary:
+      symbols: seq[MinOperator]
+    else: discard
+  MinOperator = object
+
+# remove this inline pragma to make it compile
+proc `$`*(a: MinValue): string {.inline.} =
+  case a.kind
+  of minDictionary:
+    result = "hello"
+    for i in a.symbols:
+      result = "hello"
+  else: discard
+
+proc parseMinValue*(): MinValue =
+  # or this echo
+  echo result

tests/arc/t14383.nim

@@ -0,0 +1,13 @@
+discard """
+  cmd: "nim c --gc:arc $file"
+  output: '''
+hello
+hello
+'''
+"""
+
+import dmodule
+
+var val = parseMinValue()
+if val.kind == minDictionary:
+  echo val