[d8] console methods must not throw.

R=jarin@chromium.org
BUG=chromium:714696

Review-Url: https://codereview.chromium.org/2838143002
Cr-Commit-Position: refs/heads/master@{#44854}

src/builtins/builtins-console.cc

@@ -45,6 +45,8 @@ namespace internal {
     if (isolate->console_delegate()) {            \
       debug::ConsoleCallArguments wrapper(args);  \
       isolate->console_delegate()->name(wrapper); \
+      CHECK(!isolate->has_pending_exception());   \
+      CHECK(!isolate->has_scheduled_exception()); \
     }                                             \
     return isolate->heap()->undefined_value();    \
   }

src/d8-console.cc

@@ -21,7 +21,7 @@ void WriteToFile(FILE* file, Isolate* isolate,
 
     if (arg->IsSymbol()) arg = Local<Symbol>::Cast(arg)->Name();
     if (!arg->ToString(isolate->GetCurrentContext()).ToLocal(&str_obj)) {
-      try_catch.ReThrow();
+      Shell::ReportException(isolate, &try_catch);
       return;
     }
 
@@ -68,7 +68,7 @@ void D8Console::Time(const debug::ConsoleCallArguments& args) {
     Local<String> label;
     v8::TryCatch try_catch(isolate_);
     if (!arg->ToString(isolate_->GetCurrentContext()).ToLocal(&label)) {
-      try_catch.ReThrow();
+      Shell::ReportException(isolate_, &try_catch);
       return;
     }
     v8::String::Utf8Value utf8(label);
@@ -94,7 +94,7 @@ void D8Console::TimeEnd(const debug::ConsoleCallArguments& args) {
     Local<String> label;
     v8::TryCatch try_catch(isolate_);
     if (!arg->ToString(isolate_->GetCurrentContext()).ToLocal(&label)) {
-      try_catch.ReThrow();
+      Shell::ReportException(isolate_, &try_catch);
       return;
     }
     v8::String::Utf8Value utf8(label);

test/message/console.js

@@ -21,3 +21,5 @@ console.warn("warn", { toString: () => 2 });
 console.error("error");
 console.debug("debug");
 console.info("info");
+
+console.info({ toString: () => {throw new Error("exception");} })

test/message/console.out

@@ -6,3 +6,10 @@ log more
 warn 2
 debug
 info
+*%(basename)s:25: Error: exception
+console.info({ toString: () => {throw new Error("exception");} })
+                                ^
+Error: exception
+    at Object.toString (*%(basename)s:25:39)
+    at console.info (<anonymous>)
+    at *%(basename)s:25:9

test/mjsunit/regress/regress-crbug-714696.js

+// Copyright 2017 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.
+
+new Intl.v8BreakIterator();
+new Intl.DateTimeFormat();
+console.log({ toString: function() { throw 1; }});
+new Intl.v8BreakIterator();