Support abort in the debugger. (#2273)

Aborts are not caught by catch/finally blocks,
so it is possible to stop a script using the debugger.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com

tests/debugger/do_abort.js

@@ -0,0 +1,30 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+function f() {
+  return 32;
+}
+
+function g() {
+  f();
+}
+
+// In regular JS, it is not possible to escape from this loop
+while (true) {
+  try {
+    g();
+  } catch (e) {
+    var s = "Don't stop here";
+  }
+}