- allow setting the ice translation with Thing_SetTranslation.

This requires passing a magic value because this translation is defined differently than all the rest which can be used in ACS.

src/p_lnspec.cpp

@@ -1600,6 +1600,11 @@ FUNC(LS_Thing_Move)		// [BC]
 	return P_Thing_Move (arg0, it, arg1, arg2 ? false : true);
 }
 
+enum
+{
+	TRANSLATION_ICE = 0x100007
+};
+
 FUNC(LS_Thing_SetTranslation)
 // Thing_SetTranslation (tid, range)
 {
@@ -1616,6 +1621,10 @@ FUNC(LS_Thing_SetTranslation)
 	{
 		range = TRANSLATION(TRANSLATION_LevelScripted, (arg1-1));
 	}
+	else if (arg1 == TRANSLATION_ICE)
+	{
+		range = TRANSLATION(TRANSLATION_Standard, 7);
+	}
 	else
 	{
 		range = 0;