IJPL-157074 Add the run.processes.using.pty.helper.on.mac.intel key

This way we can easily disable this hack if something goes wrong.
Do note that while we can disable this flag, it naturally won't
revert the pty4j version to the pre-hack state, so it's not a 100%
replacement for reverting all the commits that introduced
this hack to begin with.

GitOrigin-RevId: c6b0308cf031ecde71702f8eaf1d7512e22db0f9

platform/platform-util-io-impl/src/com/intellij/execution/process/ProcessServiceImpl.kt

@@ -6,6 +6,7 @@ import com.intellij.openapi.application.PathManager
 import com.intellij.openapi.diagnostic.logger
 import com.intellij.openapi.progress.ProcessCanceledException
 import com.intellij.openapi.util.SystemInfo
+import com.intellij.openapi.util.registry.Registry
 import com.intellij.util.ReflectionUtil
 import com.pty4j.PtyProcess
 import com.pty4j.PtyProcessBuilder
@@ -42,7 +43,7 @@ class ProcessServiceImpl(private val coroutineScope: CoroutineScope) : ProcessSe
       .setRedirectErrorStream(redirectErrorStream)
       .setWindowsAnsiColorEnabled(windowsAnsiColorEnabled)
       .setUnixOpenTtyToPreserveOutputAfterTermination(unixOpenTtyToPreserveOutputAfterTermination)
-      .setSpawnProcessUsingJdkOnMacIntel(true)
+      .setSpawnProcessUsingJdkOnMacIntel(Registry.`is`("run.processes.using.pty.helper.on.mac.intel", true))
     val process = builder.start()
     if (process is UnixPtyProcess && Platform.isMac() && Platform.isIntel()) {
       coroutineScope.launch(Dispatchers.IO + CoroutineName("Reaper for $process")) {

platform/util/resources/misc/registry.properties

@@ -1323,6 +1323,9 @@ run.processes.with.pty.description=Allocate pseudo-terminal for running and debu
   to check if they can operate in an interactive mode.\n\
   Note that not all IDEs check this option and support PTY at all. Currently this option is used in CLion and PyCharm.
 
+run.processes.using.pty.helper.on.mac.intel=true
+run.processes.using.pty.helper.on.mac.intel.description=Use pty4j-unix-spawn-helper to work around the fork()/exec() crashes on macOS Sonoma + Intel x86_64
+
 terminal.use.conpty.on.windows=true
 terminal.use.conpty.on.windows.description=Use ConPTY API to run processes with PTY on Windows