[Bug mi/30627] New: Windows host GDB console input broken in MI mode

["equationssolver at yahoo dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=30627

            Bug ID: 30627
           Summary: Windows host GDB console input broken in MI mode
           Product: gdb
           Version: 13.1
            Status: UNCONFIRMED
          Severity: critical
          Priority: P1
         Component: mi
          Assignee: unassigned at sourceware dot org
          Reporter: equationssolver at yahoo dot com
  Target Milestone: ---
              Host: i686-pc-mingw32

In latest 13.2 release of GDB on a Windows host. When using GDB, I'm not
receiving responses for the MI commands, causing my IDE (Eclipse) to freeze and
become unresponsive.

To reproduce the issue, I have the following scenario in PowerShell:

$  cat input
1-list-thread-groups
2-list-thread-groups
3-list-thread-groups

cat input | arm-none-eabi-gdb.exe --silent --interpreter=mi2
=thread-group-added,id="i1"
(gdb)
1^done,groups=[{id="i1",type="process"}]
(gdb)
&"warning: Exception condition detected on fd 0\n"
&"error detected on stdin\n"


As observed, there is no response for the MI commands numbered 2 and 3.

IIUC, this is caused by following commits:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=e312dfbe9556d8e4557abe7fd3f1a4681e15da06

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=d08cbc5d3203118da5583296e49273cf82378042

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