deps: update V8 to 5.1.281.69

Pick up the latest branch-head for V8 5.1. This branch brings in
improved language support and performance improvements. For full
details: http://v8project.blogspot.com/2016/04/v8-release-51.html

* Picks up the latest branch head for 5.1 [1]
* Edit v8 gitignore to allow trace_event copy
* Update V8 DEP trace_event as per deps/v8/DEPS [2]

[1] https://chromium.googlesource.com/v8/v8.git/+/dc81244
[2] https://chromium.googlesource.com/chromium/src/base/trace_event/common/+/c8c8665

PR-URL: https://github.com/nodejs/node/pull/7016
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

1 files changed, 12 insertions, 1 deletions

diff --git a/deps/v8/src/messages.cc b/deps/v8/src/messages.cc
index 072ac1d5a6..67ab36f6cf 100644
--- a/deps/v8/src/messages.cc
+++ b/deps/v8/src/messages.cc
@@ -236,9 +236,20 @@ Handle<Object> CallSite::GetMethodName() {
   Handle<Object> function_name(fun_->shared()->name(), isolate_);
   if (function_name->IsName()) {
     Handle<Name> name = Handle<Name>::cast(function_name);
+    // ES2015 gives getters and setters name prefixes which must
+    // be stripped to find the property name.
+    if (name->IsString() && FLAG_harmony_function_name) {
+      Handle<String> name_string = Handle<String>::cast(name);
+      if (name_string->IsUtf8EqualTo(CStrVector("get "), true) ||
+          name_string->IsUtf8EqualTo(CStrVector("set "), true)) {
+        name = isolate_->factory()->NewProperSubString(name_string, 4,
+                                                       name_string->length());
+      }
+    }
     if (CheckMethodName(isolate_, obj, name, fun_,
-                        LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR))
+                        LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR)) {
       return name;
+    }
   }
 
   HandleScope outer_scope(isolate_);