Revert of [Interpreter] Remove separate Ignition snapshot.

test/cctest/interpreter/interpreter-tester.cc

Index: test/cctest/interpreter/interpreter-tester.cc
diff --git a/test/cctest/interpreter/interpreter-tester.cc b/test/cctest/interpreter/interpreter-tester.cc
index 743a4f292d91f74d2d2abb39500d42280107be54..b1c412f4e724993e27072fde4f913e93e0127719 100644
--- a/test/cctest/interpreter/interpreter-tester.cc
+++ b/test/cctest/interpreter/interpreter-tester.cc
@@ -29,6 +29,8 @@
   SNPrintF(ignition_filter, "--ignition-filter=%s", filter);
   FlagList::SetFlagsFromString(ignition_filter.start(),
                                ignition_filter.length());
+  // Ensure handler table is generated.
+  isolate->interpreter()->Initialize();
 }
 
 InterpreterTester::InterpreterTester(