[wasm] Replace the BufferedRawMachineAssemblerTester in the WasmRunner.

src/profiler/sampling-heap-profiler.cc

 // Copyright 2015 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/profiler/sampling-heap-profiler.h"
 
 #include <stdint.h>
 #include <memory>
 #include "src/api.h"
 #include "src/base/utils/random-number-generator.h"
 #include "src/frames-inl.h"
 #include "src/heap/heap.h"
 #include "src/isolate.h"
 #include "src/profiler/strings-storage.h"
 
 namespace v8 {
 namespace internal {
 
 // We sample with a Poisson process, with constant average sampling interval.
 // This follows the exponential probability distribution with parameter
 // λ = 1/rate where rate is the average number of bytes between samples.
 //
 // Let u be a uniformly distributed random number between 0 and 1, then
 // next_sample = (- ln u) / λ
 intptr_t SamplingAllocationObserver::GetNextSampleInterval(uint64_t rate) {
   if (FLAG_sampling_heap_profiler_suppress_randomness) {
-    return rate;
+    return static_cast<intptr_t>(rate);
   }
   double u = random_->NextDouble();
   double next = (-std::log(u)) * rate;
   return next < kPointerSize
              ? kPointerSize
              : (next > INT_MAX ? INT_MAX : static_cast<intptr_t>(next));
 }
 
 SamplingHeapProfiler::SamplingHeapProfiler(Heap* heap, StringsStorage* names,
                                            uint64_t rate, int stack_depth)
     : isolate_(heap->isolate()),
       heap_(heap),
       new_space_observer_(new SamplingAllocationObserver(
-          heap_, rate, rate, this, heap->isolate()->random_number_generator())),
+          heap_, static_cast<intptr_t>(rate), rate, this,
+          heap->isolate()->random_number_generator())),
       other_spaces_observer_(new SamplingAllocationObserver(
-          heap_, rate, rate, this, heap->isolate()->random_number_generator())),
+          heap_, static_cast<intptr_t>(rate), rate, this,
+          heap->isolate()->random_number_generator())),
       names_(names),
       samples_(),
       stack_depth_(stack_depth) {
   heap->new_space()->AddAllocationObserver(new_space_observer_.get());
   AllSpaces spaces(heap);
   for (Space* space = spaces.next(); space != NULL; space = spaces.next()) {
     if (space != heap->new_space()) {
       space->AddAllocationObserver(other_spaces_observer_.get());
     }
   }
@@ skipping 192 matching lines @@
         AddStack(profile, scripts, allocation->get_stack());
     node->allocations.push_back({allocation->get_size(), 1});
   }
 
   return profile;
 }
 
 
 }  // namespace internal
 }  // namespace v8