build: debug information for bazel-built binaries have truncated paths in cgo packages

[rickystewart]

Setting a breakpoint in a cgo-enabled package works differently than one without cgo. Without cgo, the file paths are sensible (e.g. pkg/path/to/file.go), but with cgo, they are truncated (just file.go). This may be an issue with one of our patches to rules_go.

Internal discussion

Epic: CRDB-17171

Jira issue: CRDB-45718

[blathers-crl]

Hi @rickystewart, please add branch-* labels to identify which branch(es) this C-bug affects.

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