[debug] use catch prediction flag for promise rejections.

src/interpreter/handler-table-builder.cc

 // Copyright 2016 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/interpreter/handler-table-builder.h"
 
 #include "src/factory.h"
 #include "src/interpreter/bytecode-register.h"
 #include "src/isolate.h"
 #include "src/objects-inl.h"
 
 namespace v8 {
 namespace internal {
 namespace interpreter {
 
 HandlerTableBuilder::HandlerTableBuilder(Isolate* isolate, Zone* zone)
     : isolate_(isolate), entries_(zone) {}
 
 Handle<HandlerTable> HandlerTableBuilder::ToHandlerTable() {
   int handler_table_size = static_cast<int>(entries_.size());
   Handle<HandlerTable> table =
       Handle<HandlerTable>::cast(isolate_->factory()->NewFixedArray(
           HandlerTable::LengthForRange(handler_table_size), TENURED));
   for (int i = 0; i < handler_table_size; ++i) {
     Entry& entry = entries_[i];
-    HandlerTable::CatchPrediction pred =
-        entry.will_catch ? HandlerTable::CAUGHT : HandlerTable::UNCAUGHT;
+    HandlerTable::CatchPrediction pred = entry.catch_prediction_;
     table->SetRangeStart(i, static_cast<int>(entry.offset_start));
     table->SetRangeEnd(i, static_cast<int>(entry.offset_end));
     table->SetRangeHandler(i, static_cast<int>(entry.offset_target), pred);
     table->SetRangeData(i, entry.context.index());
   }
   return table;
 }
 
 
 int HandlerTableBuilder::NewHandlerEntry() {
   int handler_id = static_cast<int>(entries_.size());
-  Entry entry = {0, 0, 0, Register(), false};
+  Entry entry = {0, 0, 0, Register(), HandlerTable::UNCAUGHT};
   entries_.push_back(entry);
   return handler_id;
 }
 
 
 void HandlerTableBuilder::SetTryRegionStart(int handler_id, size_t offset) {
   DCHECK(Smi::IsValid(offset));  // Encoding of handler table requires this.
   entries_[handler_id].offset_start = offset;
 }
 
 
 void HandlerTableBuilder::SetTryRegionEnd(int handler_id, size_t offset) {
   DCHECK(Smi::IsValid(offset));  // Encoding of handler table requires this.
   entries_[handler_id].offset_end = offset;
 }
 
 
 void HandlerTableBuilder::SetHandlerTarget(int handler_id, size_t offset) {
   DCHECK(Smi::IsValid(offset));  // Encoding of handler table requires this.
   entries_[handler_id].offset_target = offset;
 }
 
-
-void HandlerTableBuilder::SetPrediction(int handler_id, bool will_catch) {
-  entries_[handler_id].will_catch = will_catch;
+void HandlerTableBuilder::SetPrediction(
+    int handler_id, HandlerTable::CatchPrediction prediction) {
+  entries_[handler_id].catch_prediction_ = prediction;
 }
 
 
 void HandlerTableBuilder::SetContextRegister(int handler_id, Register reg) {
   entries_[handler_id].context = reg;
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8