Harden runtime functions

src/v8conversions.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 57 matching lines @@
                       String* string,
                       int flags,
                       double empty_string_val = 0.0);
 
 
 inline bool TryNumberToSize(Isolate* isolate,
                             Object* number, size_t* result) {
   SealHandleScope shs(isolate);
   if (number->IsSmi()) {
     int value = Smi::cast(number)->value();
-    ASSERT(
-        static_cast<unsigned>(Smi::kMaxValue)
-          <= std::numeric_limits<size_t>::max());
+    ASSERT(static_cast<unsigned>(Smi::kMaxValue)
+           <= std::numeric_limits<size_t>::max());
     if (value >= 0) {
       *result = static_cast<size_t>(value);
       return true;
     }
     return false;
   } else {
     ASSERT(number->IsHeapNumber());
     double value = HeapNumber::cast(number)->value();
     if (value >= 0 &&
         value <= std::numeric_limits<size_t>::max()) {
@@ skipping 10 matching lines @@
                            Object* number) {
   size_t result = 0;
   bool is_valid = TryNumberToSize(isolate, number, &result);
   CHECK(is_valid);
   return result;
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_V8CONVERSIONS_H_