Compute the right catch location for the debugger.

Also remove tls ThrowLocation, it is not needed anymore.

Change-Id: I78fddf09ce968ca475e39c17fa76d699c589c8d9
diff --git a/runtime/entrypoints/quick/quick_throw_entrypoints.cc b/runtime/entrypoints/quick/quick_throw_entrypoints.cc
index 25df40b..127f9e0 100644
--- a/runtime/entrypoints/quick/quick_throw_entrypoints.cc
+++ b/runtime/entrypoints/quick/quick_throw_entrypoints.cc
@@ -41,12 +41,12 @@
    * exception_ in thread and delivering the exception.
    */
   ScopedQuickEntrypointChecks sqec(self);
-  ThrowLocation throw_location = self->GetCurrentLocationForThrow();
   if (exception == nullptr) {
+    ThrowLocation throw_location = self->GetCurrentLocationForThrow();
     self->ThrowNewException(throw_location, "Ljava/lang/NullPointerException;",
                             "throw with null exception");
   } else {
-    self->SetException(throw_location, exception);
+    self->SetException(exception);
   }
   self->QuickDeliverException();
 }