Internal error

[bougarfaoui]

• Assign codes to errors reported by internal/buffer.js

Ref: #11273

Semver-major because this updates specific error messages and converts errors over to use the new internal/errors.js mechanism.

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• documentation is changed or added
• commit message follows commit guidelines

Affected core subsystem(s)

errors, buffer