[interpreter] Add tests for translating PC from optimized frame.

R=mythria@chromium.org, rmcilroy@chromium.org
BUG=v8:4689
LOG=N

Review URL: https://codereview.chromium.org/1759673002

Cr-Commit-Position: refs/heads/master@{#34434}

test/mjsunit/ignition/optimized-debug-frame.js

+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax --expose-debug-as debug
+
+// Test that PC in optimized frame would correctly translate into
+// unoptimized frame when retrieving frame information in the debugger.
+
+function f() {
+  debugger;
+}
+
+function g(x) {
+  return f();
+}
+
+var break_count = 0;
+
+function listener(event, exec_state, event_data, data) {
+  if (event != Debug.DebugEvent.Break) return;
+  assertEquals(14, exec_state.frame(1).sourceLine());
+  assertEquals(9, exec_state.frame(1).sourceColumn());
+  break_count++;
+}
+
+g();
+g();
+%OptimizeFunctionOnNextCall(g);
+
+var Debug = debug.Debug;
+Debug.setListener(listener);
+
+g();
+
+Debug.setListener(null);
+
+assertEquals(1, break_count);

test/mjsunit/ignition/optimized-stack-trace.js

+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax
+
+// Test that PC in optimized frame would correctly translate into
+// unoptimized frame when collecting stack trace.
+
+function f() {
+  return new Error().stack;
+}
+
+function g(x) {
+  return f();
+}
+
+g();
+g();
+%OptimizeFunctionOnNextCall(g);
+print(g());
+assertTrue(/g \(.*?\.js:15:10\)/.test(g()));

test/mjsunit/mjsunit.status

@@ -780,6 +780,12 @@
 }],  # 'arch == ppc and simulator_run == True'
 
 ['ignition == True', {
+  # TODO(rmcilroy, 4689): FrameInspector does not translate interpreted frame.
+  'ignition/optimized-debug-frame': [FAIL],
+
+  # TODO(rmcilroy, 4689): Translated code offset for FrameSummary is wrong.
+  'ignition/optimized-stack-trace': [FAIL],
+
   # TODO(yangguo,4690): assertion failures in debugger tests.
   'debug-allscopes-on-debugger': [FAIL],
   'debug-return-value': [FAIL],