PPC: [debugger] flood function for stepping before calling it.

src/ppc/builtins-ppc.cc

Index: src/ppc/builtins-ppc.cc
diff --git a/src/ppc/builtins-ppc.cc b/src/ppc/builtins-ppc.cc
index 4ede21e0bc452eb005433bbc82510cf713e9e737..f6a92c3f921d210c1202c3734a1a56d4df4068e8 100644
--- a/src/ppc/builtins-ppc.cc
+++ b/src/ppc/builtins-ppc.cc
@@ -572,7 +572,8 @@ static void Generate_JSConstructStubHelper(MacroAssembler* masm,
       __ Call(code, RelocInfo::CODE_TARGET);
     } else {
       ParameterCount actual(r3);
-      __ InvokeFunction(r4, r6, actual, CALL_FUNCTION, NullCallWrapper());
+      __ InvokeFunction(r4, r6, actual, CALL_FUNCTION,
+                        CheckDebugStepCallWrapper());
     }
 
     // Store offset of return address for deoptimizer.
@@ -1707,10 +1708,10 @@ void Builtins::Generate_CallFunction(MacroAssembler* masm,
 #if !V8_TARGET_ARCH_PPC64
   __ SmiUntag(r5);
 #endif
-  __ LoadP(r7, FieldMemOperand(r4, JSFunction::kCodeEntryOffset));
   ParameterCount actual(r3);
   ParameterCount expected(r5);
-  __ InvokeCode(r7, no_reg, expected, actual, JUMP_FUNCTION, NullCallWrapper());
+  __ InvokeFunctionCode(r4, no_reg, expected, actual, JUMP_FUNCTION,
+                        CheckDebugStepCallWrapper());
 
   // The function is a "classConstructor", need to raise an exception.
   __ bind(&class_constructor);