always show non-Python guest language exceptions

Author: lukasstadler

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/nodes/control/TopLevelExceptionHandler.java

@@ -71,6 +71,7 @@
 import com.oracle.graal.python.runtime.PythonContext;
 import com.oracle.graal.python.runtime.PythonCore;
 import com.oracle.graal.python.runtime.PythonOptions;
+import com.oracle.graal.python.runtime.exception.ExceptionUtils;
 import com.oracle.graal.python.runtime.exception.PException;
 import com.oracle.graal.python.runtime.exception.PythonExitException;
 import com.oracle.graal.python.runtime.object.PythonObjectFactory;
@@ -136,10 +137,12 @@ public Object execute(VirtualFrame frame) {
                 }
                 return null;
             } catch (Exception | StackOverflowError e) {
-                if (PythonOptions.getOption(context.get(), PythonOptions.WithJavaStacktrace)) {
-                    boolean exitException = e instanceof TruffleException && ((TruffleException) e).isExit();
-                    if (!exitException) {
+                boolean exitException = e instanceof TruffleException && ((TruffleException) e).isExit();
+                if (!exitException) {
+                    if (PythonOptions.getOption(context.get(), PythonOptions.WithJavaStacktrace)) {
                         printStackTrace(e);
+                    } else {
+                        ExceptionUtils.printPythonLikeStackTrace(e);
                     }
                 }
                 throw e;

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/exception/ExceptionUtils.java

@@ -55,7 +55,7 @@ private ExceptionUtils() {
     }
 
     @TruffleBoundary
-    public static void printPythonLikeStackTrace(PException e) {
+    public static void printPythonLikeStackTrace(Throwable e) {
         List<TruffleStackTraceElement> stackTrace = TruffleStackTrace.getStackTrace(e);
         ArrayList<String> stack = new ArrayList<>();
         for (TruffleStackTraceElement frame : stackTrace) {