Debugger: Use -file-symbol-file for core files with GDB

Task-number: QTCREATORBUG-24541
Change-Id: Ib6d070629f5a7d1505c272ce78f99dc14cd15fdc
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/debugger/gdb/gdbengine.cpp

@@ -4166,7 +4166,7 @@ void GdbEngine::setupInferior()
         }
 
         if (!symbolFile.isEmpty()) {
-            runCommand({"-file-exec-and-symbols \"" + symbolFile + '"',
+            runCommand({"-file-symbol-file \"" + symbolFile + '"',
                         CB(handleFileExecAndSymbols)});
         }