Update all callsites of the TryCatch ctor to pass an Isolate

samples/process.cc

Index: samples/process.cc
diff --git a/samples/process.cc b/samples/process.cc
index 8d1cebeab52c5f8e5180fec030c113f1578d87c9..c34ba7bfa9ee9c72bda98f270ff3f7f189ca7c5e 100644
--- a/samples/process.cc
+++ b/samples/process.cc
@@ -220,7 +220,7 @@ bool JsHttpRequestProcessor::ExecuteScript(Handle<String> script) {
 
   // We're just about to compile the script; set up an error handler to
   // catch any exceptions the script might throw.
-  TryCatch try_catch;
+  TryCatch try_catch(GetIsolate());
 
   // Compile the script and check for errors.
   Handle<Script> compiled_script = Script::Compile(script);
@@ -281,7 +281,7 @@ bool JsHttpRequestProcessor::Process(HttpRequest* request) {
   Handle<Object> request_obj = WrapRequest(request);
 
   // Set up an exception handler before calling the Process function
-  TryCatch try_catch;
+  TryCatch try_catch(GetIsolate());
 
   // Invoke the process function, giving the global object as 'this'
   // and one argument, the request.