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

src/debug/arm/debug-arm.cc

 // Copyright 2012 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_ARM
 
 #include "src/codegen.h"
 #include "src/debug/debug.h"
 
 namespace v8 {
@@ skipping 120 matching lines @@
          StandardFrameConstants::kConstantPoolOffset - kPointerSize));
 
   // Pop return address, frame and constant pool pointer (if
   // FLAG_enable_embedded_constant_pool).
   __ LeaveFrame(StackFrame::INTERNAL);
 
   { ConstantPoolUnavailableScope constant_pool_unavailable(masm);
     // Load context from the function.
     __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset));
 
+    // Clear new.target as a safety measure.
+    __ LoadRoot(r3, Heap::kUndefinedValueRootIndex);
+
     // Get function code.
     __ ldr(ip, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
     __ ldr(ip, FieldMemOperand(ip, SharedFunctionInfo::kCodeOffset));
     __ add(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag));
 
     // Re-run JSFunction, r1 is function, cp is context.
     __ Jump(ip);
   }
 }
 
 
 const bool LiveEdit::kFrameDropperSupported = true;
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_ARM