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

src/debug/mips64/debug-mips64.cc

Index: src/debug/mips64/debug-mips64.cc
diff --git a/src/debug/mips64/debug-mips64.cc b/src/debug/mips64/debug-mips64.cc
index 49bbf3bf8ca52c5570e5d70c67513b159a58b56e..9831de127cce92e1b8db464c702330925352f9d6 100644
--- a/src/debug/mips64/debug-mips64.cc
+++ b/src/debug/mips64/debug-mips64.cc
@@ -130,6 +130,9 @@ void DebugCodegen::GenerateFrameDropperLiveEdit(MacroAssembler* masm) {
   // Load context from the function.
   __ ld(cp, FieldMemOperand(a1, JSFunction::kContextOffset));
 
+  // Clear new.target as a safety measure.
+  __ LoadRoot(a3, Heap::kUndefinedValueRootIndex);
+
   // Get function code.
   __ ld(at, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
   __ ld(at, FieldMemOperand(at, SharedFunctionInfo::kCodeOffset));