Bug#947437: flang: Please update to llvm-9

[Sylvestre Ledru]

Package: flang
Severity: important

Dear Maintainer,

Please upgrade to llvm 9. 7 isn't maintained and will be removed soon.

Thanks
Sylvestre

-- System Information:
Debian Release: 10.0
APT prefers unstable
APT policy: (600, 'unstable'), (500, 'buildd-unstable'), (500, 
'oldstable'), (300, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-5-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_WARN
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), 
LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)