stdenv.mkDerivation: move concretizeFlagImplications to global scope

pkgs/stdenv/generic/make-derivation.nix

@@ -165,6 +165,10 @@ let
     "zerocallusedregs"
   ];
 
+  concretizeFlagImplications =
+    flag: impliesFlags: list:
+    if elem flag list then (list ++ impliesFlags) else list;
+
   removedOrReplacedAttrNames = [
     "checkInputs"
     "installCheckInputs"
@@ -409,10 +413,6 @@ let
           actualValue;
       outputs' = if separateDebugInfo' then outputs ++ [ "debug" ] else outputs;
 
-      concretizeFlagImplications =
-        flag: impliesFlags: list:
-        if elem flag list then (list ++ impliesFlags) else list;
-
       hardeningDisable' = unique (
         pipe hardeningDisable [
           # disabling fortify implies fortify3 should also be disabled