Error: undeclared identifier: 'format' when generic calls strformat.fmt

[timotheecour]

t05_fmt_undecl_identifier_format2.nim:

import strformat

proc bar*[T]():string= # ok if non generic
  var a=1
  # result = fmt"{b}" #ok
  result = fmt"{a:#x}" #BUG Error: undeclared identifier: 'format'

import t05_fmt_undecl_identifier_format2
echo bar[int]()

rnim bugs/stdlib/t05_fmt_undecl_identifier_format.nim
nim c --nimcache:/tmp/nim//nimcache/ -o:/tmp/nim//app -r bugs/stdlib/t05_fmt_undecl_identifier_format.nim
/Users/timothee/git_clone/nim/timn/bugs/stdlib/t05_fmt_undecl_identifier_format.nim(5, 6) template/generic instantiation from here
/Users/timothee/git_clone/nim/timn/bugs/stdlib/t05_fmt_undecl_identifier_format2.nim(6, 15) template/generic instantiation from here
/Users/timothee/git_clone/nim/Nim/lib/pure/strformat.nim(278, 5) Error: undeclared identifier: 'format'
format($arg, option, res)

workaround: export strformat.format in t05_fmt_undecl_identifier_format2

[GULPF]

Duplicate of #7632