[debugger] do not restart frames that reference new.target for liveedit.

src/debug/arm64/debug-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/arm64/frames-arm64.h"
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 
@@ skipping 130 matching lines @@
 
   // We do not know our frame height, but set sp based on fp.
   __ Sub(masm->StackPointer(), fp, kPointerSize);
   __ AssertStackConsistency();
 
   __ Pop(x1, fp, lr);  // Function, Frame, Return address.
 
   // Load context from the function.
   __ Ldr(cp, FieldMemOperand(x1, JSFunction::kContextOffset));
 
+  // Clear new.target as a safety measure.
+  __ LoadRoot(x3, Heap::kUndefinedValueRootIndex);
+
   // Get function code.
   __ Ldr(scratch, FieldMemOperand(x1, JSFunction::kSharedFunctionInfoOffset));
   __ Ldr(scratch, FieldMemOperand(scratch, SharedFunctionInfo::kCodeOffset));
   __ Add(scratch, scratch, Code::kHeaderSize - kHeapObjectTag);
 
   // Re-run JSFunction, x1 is function, cp is context.
   __ Br(scratch);
 }
 
 
 const bool LiveEdit::kFrameDropperSupported = true;
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM64