[turbofan] Clear pending exception from unsuccessful compilation.

BUG=chromium:458987
LOG=n
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/932603002

Cr-Commit-Position: refs/heads/master@{#26665}

src/compiler.cc

@@ -867,6 +867,9 @@ MaybeHandle<Code> Compiler::GetLazyCode(Handle<JSFunction> function) {
       DCHECK(function->shared()->is_compiled());
       return info.code();
     }
+    // We have failed compilation. If there was an exception clear it so that
+    // we can compile unoptimized code.
+    if (isolate->has_pending_exception()) isolate->clear_pending_exception();
   }
 
   if (function->shared()->is_compiled()) {

test/mjsunit/regress/regress-458987.js

+// Copyright 2014 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.
+
+(function () {
+  "use asm";
+
+  function g() {}
+
+  runNearStackLimit(g);
+})();
+
+function runNearStackLimit(f) {
+  function g() { try { g(); } catch(e) { f(); } };
+  g();
+}