nimpretty generates wrong code with parenthesized expressions

[hamidb80]

I really can't explain what's going on, just see the examples

Example 1

no changes, everything is OK

let temp =
  if true:
    1
  else:
    discard nil
    2

=== nim pretty ===>>

let temp =
  if true:
    1
  else:
    discard nil
    2

Example 2

things getting wierd by parentheses

let temp = (
  if true:
    1
  else:
    discard nil
    2
)

=== nim pretty ===>

let temp = (
  if true:
    1
else:  # <------ unindented
    discard nil
    2
)

notice: the code still compiles

Example 3

just a proc def top of the par expression

proc myProc =
  discard

let temp = (
  if true:
    1
  else:
    discard nil
    2
)

=== nim pretty ===>

proc myProc =
  discard

let temp = (
  if true:
  1                         # <------ unindent
else:                      # <------ unindent
  discard nil           # <------ unindent
  2                         # <------ unindent
)

error on compile:

Error: expression '1' is of type 'int literal(1)' and has to be used (or 
discarded)

Example 4

2 var defs, one with pars:

let temp = (
  if true:
    1
  else:
    discard nil
    2
)

let temp2 =
  if true:
    1
  else:
    discard nil
    2

=== nim pretty ===>

let temp = (
  if true:
    1
else:  # <-------- unindent
    discard nil
    2
)

let temp2 =
    if true: # <------------ indent
    1
  else:
    discard nil
    2

notice: compiles successfully

Example 5

2 var defs with proc def top of them one with pars:

proc myProc =
  discard

let temp = (
  if true:
    1
  else:
    discard nil
    2
)

let temp2 =
  if true:
    1
  else:
    discard nil
    2

=== nim pretty ===>

proc myProc =
  discard

let temp = (
  if true:
  1                    #  <----- unindent
else:                 #  <----- unindent
  discard nil      # <----- unindent
  2                    # <----- unindent
)

let temp2 =
  if true:
    1
  else:
    discard nil
    2

notice: compile error same as Example 3

Additional Information

$ nim -v
Nim Compiler Version 1.5.1 [Windows: amd64]
Compiled at 2021-06-20
Copyright (c) 2006-2021 by Andreas Rumpf

[timotheecour]

notice: the code still compiles

=> filed #18500

PR welcome to help with nimpretty

[hamidb80]

no problem with Nim version 1.6.14
sorry that was a mistake