HCR: properly handling complex const objects in the codegen - fixes #13915 (#14115)

tests/dll/nimhcr_0_3.nim

@@ -14,5 +14,6 @@ let c = makeCounter()
 afterCodeReload:
   echo "   0: after - closure iterator: ", c()
   echo "   0: after - closure iterator: ", c()
+  echo "   0: after - c_2 = ", c_2
 
 proc getInt*(): int = return g_1 + g_2.len

tests/dll/nimhcr_2_1.nim

@@ -7,6 +7,8 @@ type
 
 let g_2* = @[Type2(data: 2), Type2(data: 3)][1..^1] # should have a length of 1
 
+const c_2* = [1, 2, 3] # testing that a complext const object is properly exported
+
 var a: tuple[str: string, i: int]
 a.str = "   2: random string"
 echo a.str

tests/dll/nimhcr_integration.nim

@@ -36,6 +36,7 @@ max mutual recursion reached!
 bar
    0: after - closure iterator: 0
    0: after - closure iterator: 1
+   0: after - c_2 = [1, 2, 3]
 main: after
               The answer is: 9
 main: hasAnyModuleChanged? true