gcc-15 (15.2.0-15) unstable; urgency=medium

gcc-15 (15.2.0-15) unstable; urgency=medium

  * Update to git 20260307 from the gcc-15 branch.
    - Fix PR ada/124226, PR ada/124224, PR target/123807 (loongarch).
      PR middle-end/124250, PR ipa/122856, PR target/122097 (loongarch),
      PR ada/124285, PR ada/123306, PR c++/123845, PR lto/121588,
      PR libstdc++/124363, PR libstdc++/114865, PR libstdc++/123875.
  * Fix backport builds for Ubuntu 24.04.
  * Fix PR demangler/106641, taken from the trunk.
  * libsanitizer/TSan: Fix determining static TLS blocks. Addresses: #1126312.
  * Stop building packages now built by GCC 16.

[dgit import unpatched gcc-15 15.2.0-15]