[heap] Add the GC epoch to more trace events

Bug: chromium:1154636
Change-Id: I69fb396d5ed5d4fd2823bfb0db1d994517aead91
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2650212Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72360}

src/heap/concurrent-marking.cc

@@ -375,9 +375,9 @@ class ConcurrentMarking::JobTask : public v8::JobTask {
       concurrent_marking_->Run(delegate, bytecode_flush_mode_,
                                mark_compact_epoch_, is_forced_gc_);
     } else {
-      TRACE_GC1(concurrent_marking_->heap_->tracer(),
-                GCTracer::Scope::MC_BACKGROUND_MARKING,
-                ThreadKind::kBackground);
+      TRACE_GC_EPOCH(concurrent_marking_->heap_->tracer(),
+                     GCTracer::Scope::MC_BACKGROUND_MARKING,
+                     ThreadKind::kBackground);
       concurrent_marking_->Run(delegate, bytecode_flush_mode_,
                                mark_compact_epoch_, is_forced_gc_);
     }

src/heap/incremental-marking.cc

@@ -876,7 +876,8 @@ void IncrementalMarking::AdvanceOnAllocation() {
   HistogramTimerScope incremental_marking_scope(
       heap_->isolate()->counters()->gc_incremental_marking());
   TRACE_EVENT0("v8", "V8.GCIncrementalMarking");
-  TRACE_GC(heap_->tracer(), GCTracer::Scope::MC_INCREMENTAL);
+  TRACE_GC_EPOCH(heap_->tracer(), GCTracer::Scope::MC_INCREMENTAL,
+                 ThreadKind::kMain);
   ScheduleBytesToMarkBasedOnAllocation();
   Step(kMaxStepSizeInMs, GC_VIA_STACK_GUARD, StepOrigin::kV8);
 }