[wasm] Make wasm info available on the stack trace

src/runtime/runtime-internal.cc

 // 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.
 
 #include "src/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/ast/prettyprinter.h"
 #include "src/bootstrapper.h"
 #include "src/conversions.h"
@@ skipping 323 matching lines @@
   return *result;
 }
 
 #define CALLSITE_GET(NAME, RETURN)                          \
   RUNTIME_FUNCTION(Runtime_CallSite##NAME##RT) {            \
     HandleScope scope(isolate);                             \
     DCHECK(args.length() == 1);                             \
     CONVERT_ARG_HANDLE_CHECKED(JSObject, call_site_obj, 0); \
     Handle<String> result;                                  \
     CallSite call_site(isolate, call_site_obj);             \
-    RUNTIME_ASSERT(call_site.IsValid());                    \

[Yang, 2016/05/04 19:02:22]

Can we at least have a runtime assert that checks that call_site is either
javascript or wasm? This has been put here to check that the CallSite object has
been successfully constructed. I.e. the argument call_site_obj indeed has the
correct properties.

[Clemens Hammacher, 2016/05/05 12:29:16]

Done.

     return RETURN(call_site.NAME(), isolate);               \
   }
 
 static inline Object* ReturnDereferencedHandle(Handle<Object> obj,
                                                Isolate* isolate) {
   return *obj;
 }
 
 
 static inline Object* ReturnPositiveNumberOrNull(int value, Isolate* isolate) {
@@ skipping 160 matching lines @@
 }
 
 RUNTIME_FUNCTION(Runtime_RunMicrotasks) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 0);
   isolate->RunMicrotasks();
   return isolate->heap()->undefined_value();
 }
 }  // namespace internal
 }  // namespace v8