[debugger] omit exception events for rethrown exceptions in async.

src/full-codegen/arm64/full-codegen-arm64.cc

 // Copyright 2013 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.
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "src/ast/scopes.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 3538 matching lines @@
   STATIC_ASSERT(JSGeneratorObject::kNext < JSGeneratorObject::kReturn);
   STATIC_ASSERT(JSGeneratorObject::kThrow > JSGeneratorObject::kReturn);
   __ Cmp(x1, Operand(Smi::FromInt(JSGeneratorObject::kReturn)));
   __ B(lt, &resume);
   __ Push(result_register());
   __ B(gt, &exception);
   EmitCreateIteratorResult(true);
   EmitUnwindAndReturn();
 
   __ Bind(&exception);
-  __ CallRuntime(Runtime::kThrow);
+  __ CallRuntime(expr->rethrow_on_exception() ? Runtime::kReThrow
+                                              : Runtime::kThrow);
 
   __ Bind(&suspend);
   OperandStackDepthIncrement(1);  // Not popped on this path.
   VisitForAccumulatorValue(expr->generator_object());
   DCHECK((continuation.pos() > 0) && Smi::IsValid(continuation.pos()));
   __ Mov(x1, Smi::FromInt(continuation.pos()));
   __ Str(x1, FieldMemOperand(x0, JSGeneratorObject::kContinuationOffset));
   __ Str(cp, FieldMemOperand(x0, JSGeneratorObject::kContextOffset));
   __ Mov(x1, cp);
   __ RecordWriteField(x0, JSGeneratorObject::kContextOffset, x1, x2,
@@ skipping 276 matching lines @@
   }
 
   return INTERRUPT;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64