[debugger] flood function for stepping before calling it.

src/ic/mips64/handler-compiler-mips64.cc

Index: src/ic/mips64/handler-compiler-mips64.cc
diff --git a/src/ic/mips64/handler-compiler-mips64.cc b/src/ic/mips64/handler-compiler-mips64.cc
index a3cfbd537e02fcb28f2dcbd764ca9abb7459a778..1f8635cf4cb37bff9e6dbc4f46631c4e61e9a5ac 100644
--- a/src/ic/mips64/handler-compiler-mips64.cc
+++ b/src/ic/mips64/handler-compiler-mips64.cc
@@ -40,7 +40,8 @@ void NamedLoadHandlerCompiler::GenerateLoadViaGetter(
       ParameterCount actual(0);
       ParameterCount expected(expected_arguments);
       __ LoadAccessor(a1, holder, accessor_index, ACCESSOR_GETTER);
-      __ InvokeFunction(a1, expected, actual, CALL_FUNCTION, NullCallWrapper());
+      __ InvokeFunction(a1, expected, actual, CALL_FUNCTION,
+                        CheckDebugStepCallWrapper());
     } else {
       // If we generate a global code snippet for deoptimization only, remember
       // the place to continue after deoptimization.
@@ -81,7 +82,8 @@ void NamedStoreHandlerCompiler::GenerateStoreViaSetter(
       ParameterCount actual(1);
       ParameterCount expected(expected_arguments);
       __ LoadAccessor(a1, holder, accessor_index, ACCESSOR_SETTER);
-      __ InvokeFunction(a1, expected, actual, CALL_FUNCTION, NullCallWrapper());
+      __ InvokeFunction(a1, expected, actual, CALL_FUNCTION,
+                        CheckDebugStepCallWrapper());
     } else {
       // If we generate a global code snippet for deoptimization only, remember
       // the place to continue after deoptimization.