Regression when calling proc in generic instancing

[Menduist]

Description

Sorry about the long repro, couldn't reduce further:
a.nim:

import b

proc write*[T: uint32](value: T) =
  var length = 5
  var buffer: seq[byte]
  PB.putUVarint(buffer.toOpenArray(0, 1), length, value)

write(uint32(5))

b.nim:

import c

type 
  PB* = object 
  LP* = object


proc putUVarint*[T: PB|LP](vtype: typedesc[T],
                           pbytes: var openArray[byte],
                           outlen: var int,
                           outval: uint32) =
  let bytes = toBytes(outval, Leb128)

c.nim:

type Leb128* = object

func maxLen*(T: type Leb128, I: type): int8 = 1
  
type Leb128Buf*[T: SomeUnsignedInt] = object
    data*: array[maxLen(Leb128, T), byte]

func toBytes*[I: SomeUnsignedInt](v: I, T: type Leb128): Leb128Buf[I] {.noinit.} = discard

Nim devel: c.nim(6, 18) Error: undeclared identifier: 'maxLen'
Nim 1.6.14: compiles

Nim Version

13b7e4e

Additional Information

This started approximately on the 14th of june, so maybe this PR caused it? #22029

[metagn]

Try any commit after 6d21637, the hash given above is 3 days before it

[Menduist]

Oh right my bad, didn't realized you already fixed it
Sorry, and thanks for the quick fix!