go/internal/gccgoimporter: go building failing with gcc 14.1.0 [1.22 backport]

[gopherbot]

@ianlancetaylor requested issue #67846 to be considered for backport to the next 1.22 minor release.

@gopherbot Please open backport issues.

This is due to some changes in gccgo that appeared in GCC 14. To fix this we will need to backport https://go.dev/cl/537195. That change is small and safe. This is already fixed at HEAD.

[gopherbot]

Change https://go.dev/cl/592215 mentions this issue: [release-branch.go1.22] go/internal/gccgoimporter: recognize "any" as a builtin type

[gopherbot]

Closed by merging b515c52 to release-branch.go1.22.