Fix error in export functionality:

a) set key when etf record is constructed.
b) make corrections in no_rtti type system
c) make no_rtti type system more robust and self-diagnosing

[SVN r55675]

libs/serialization

@@ -1 +1 @@
-Subproject commit a1d25c5a56c4ecc989e9cba88b4bead80aac7125
+Subproject commit 532db55bb338ce3ab5a1b91e0883f1046b4ab368