[FE] Add missing 'originalForSubstitutionOverrideAttr' to parameters

'originalForSubstitutionOverrideAttr' is supposed to be on all
'SubstitutionOverride' declarations, and certain functionality, such as
'KtFirOverrideInfoProvider#getOriginalOverriddenSymbol()' depends on it.

Absence of the attribute might trigger infinite loop/recursion in
substitution unwrapping.

compiler/fir/providers/src/org/jetbrains/kotlin/fir/scopes/impl/FirFakeOverrideGenerator.kt

@@ -266,6 +266,8 @@ object FirFakeOverrideGenerator {
                 origin = FirDeclarationOrigin.SubstitutionOverride
                 returnTypeRef = valueParameter.returnTypeRef.withReplacedConeType(newType)
                 symbol = FirValueParameterSymbol(valueParameter.name)
+            }.apply {
+                originalForSubstitutionOverrideAttr = valueParameter
             }
         }