Ada: Fix assertion failure on Finalizable aspect for tagged record type
This is a (benign) assertion failure on the mainline for the new Finalizable
aspect put on a tagged record type when not all the primitives are declared.
This compiles and runs on the 15 branch because assertions are disabled.
gcc/ada/
PR ada/120104
* exp_ch3.adb (Expand_Freeze_Record_Type): For a controlled tagged
type, freeze only the controlled primitives that are present.
gcc/testsuite/
* gnat.dg/specs/finalizable1.ads: New test.