Soft deprecate GenesisConfig (#14210)

* soft deprecate genesisconfig

* temporarily add a deprecation attr

* update tests

* update mocks

* update genesis config

* update genesis config

* update genesis config

* update genesis config

* remove deprecation warning

* update deprecation comment

---------

Co-authored-by: parity-processbot <>

substrate/frame/examples/basic/src/tests.rs

@@ -102,7 +102,7 @@ impl Config for Test {
 // This function basically just builds a genesis storage key/value store according to
 // our desired mockup.
 pub fn new_test_ext() -> sp_io::TestExternalities {
-	let t = GenesisConfig {
+	let t = RuntimeGenesisConfig {
 		// We use default for brevity, but you can configure as desired if needed.
 		system: Default::default(),
 		balances: Default::default(),