Add command line option to ask Debugger to save a report.

- When invoked, starts up the CLI such that it bypasses waiting for
  input and instead save a crash report of the running team, then exits.
  Mainly intended to be used by debug_server.

src/apps/debugger/user_interface/cli/CommandLineUserInterface.cpp

@@ -88,9 +88,12 @@ private:
 // #pragma mark - CommandLineUserInterface
 
 
-CommandLineUserInterface::CommandLineUserInterface()
+CommandLineUserInterface::CommandLineUserInterface(bool saveReport,
+	const char* reportPath)
 	:
 	fCommands(20, true),
+	fReportPath(reportPath),
+	fSaveReport(saveReport),
 	fShowSemaphore(-1),
 	fShown(false),
 	fTerminating(false)
@@ -202,7 +205,18 @@ CommandLineUserInterface::Run()
 	if (error != B_OK)
 		return;
 
-	_InputLoop();
+	if (!fSaveReport)
+		_InputLoop();
+	else {
+		ArgumentVector args;
+		char buffer[256];
+		const char* parseErrorLocation;
+		snprintf(buffer, sizeof(buffer), "save-report %s",
+			fReportPath != NULL ? fReportPath : "");
+		args.Parse(buffer, &parseErrorLocation);
+		_ExecuteCommand(args.ArgumentCount(), args.Arguments());
+		fContext.QuitSession(true);
+	}
 
 	// Release the Show() semaphore to signal Terminate().
 	release_sem(fShowSemaphore);