nushell

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Files

Wind 288f419f7b print to a value should be a SIGPIPE (#16171 )

# Description
Partially handles #14799 
It's difficult to fix all cases there, but I think it's good to improve
one of this with a small step

# User-Facing Changes
Given the following code in c:
```C
// write.c
#include <stdio.h>

int main() {
  while (1) {
    printf("a\n");
  }
}
```
After this pr, `./write | 0` will exit immediately, in that case,
`./write` will receive `SIGPIPE` in unix. Before this pr, `./write | 0`
runs indefinitely.

-----------------------

Maybe it's easier to see what happened internally by the different
output of `view ir { ./write | 0 }` command.
### Before
```
# 2 registers, 6 instructions, 7 bytes of data
   0: load-literal           %1, glob-pattern("./write", no_expand = false)
   1: push-positional        %1
   2: redirect-out           null
   3: call                   decl 135 "run-external", %0
   4: load-literal           %0, int(0)
   5: return                 %0
```

### After
```
# 2 registers, 6 instructions, 7 bytes of data
   0: load-literal           %1, glob-pattern("./write", no_expand = false)
   1: push-positional        %1
   2: redirect-out           pipe      # changed, the command's output is a pipe rather than null
   3: call                   decl 136 "run-external", %0
   4: load-literal           %0, int(0)
   5: return                 %0
```
# Tests + Formatting
Added 1 test.

# After Submitting
NaN

2025-07-14 13:26:51 -04:00