Compute the right catch location for the debugger.

Also remove tls ThrowLocation, it is not needed anymore.

Change-Id: I78fddf09ce968ca475e39c17fa76d699c589c8d9
diff --git a/runtime/class_linker_test.cc b/runtime/class_linker_test.cc
index 64e129c..1789ab1 100644
--- a/runtime/class_linker_test.cc
+++ b/runtime/class_linker_test.cc
@@ -48,7 +48,7 @@
     Thread* self = Thread::Current();
     EXPECT_TRUE(class_linker_->FindSystemClass(self, descriptor.c_str()) == nullptr);
     EXPECT_TRUE(self->IsExceptionPending());
-    mirror::Object* exception = self->GetException(nullptr);
+    mirror::Object* exception = self->GetException();
     self->ClearException();
     mirror::Class* exception_class =
         class_linker_->FindSystemClass(self, "Ljava/lang/NoClassDefFoundError;");