Revert of [debugger] do not predict step in target for liveedit.

src/debug/arm/debug-arm.cc

Index: src/debug/arm/debug-arm.cc
diff --git a/src/debug/arm/debug-arm.cc b/src/debug/arm/debug-arm.cc
index 49ddd7687f97e2c87776d09b32ca71c9fa65f1cf..da39268a8aca5ce74439d0465693cde865d94280 100644
--- a/src/debug/arm/debug-arm.cc
+++ b/src/debug/arm/debug-arm.cc
@@ -114,13 +114,22 @@
 }
 
 
+void DebugCodegen::GeneratePlainReturnLiveEdit(MacroAssembler* masm) {
+  __ Ret();
+}
+
+
 void DebugCodegen::GenerateFrameDropperLiveEdit(MacroAssembler* masm) {
+  ExternalReference restarter_frame_function_slot =
+      ExternalReference::debug_restarter_frame_function_pointer_address(
+          masm->isolate());
+  __ mov(ip, Operand(restarter_frame_function_slot));
+  __ mov(r1, Operand::Zero());
+  __ str(r1, MemOperand(ip, 0));
+
   // Load the function pointer off of our current stack frame.
   __ ldr(r1, MemOperand(fp,
          StandardFrameConstants::kConstantPoolOffset - kPointerSize));
-
-  ParameterCount dummy(0);
-  __ FloodFunctionIfStepping(r1, no_reg, dummy, dummy);
 
   // Pop return address, frame and constant pool pointer (if
   // FLAG_enable_embedded_constant_pool).