[Interpreter] Make ignition compiler eagerly.

test/cctest/interpreter/test-interpreter.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/execution.h"
 #include "src/handles.h"
 #include "src/interpreter/bytecode-array-builder.h"
 #include "src/interpreter/interpreter.h"
@@ skipping 48 matching lines @@
   InterpreterTester(Isolate* isolate, const char* source,
                     MaybeHandle<BytecodeArray> bytecode,
                     MaybeHandle<TypeFeedbackVector> feedback_vector,
                     const char* filter)
       : isolate_(isolate),
         source_(source),
         bytecode_(bytecode),
         feedback_vector_(feedback_vector) {
     i::FLAG_ignition = true;
     i::FLAG_always_opt = false;
-    // Set ignition filter flag via SetFlagsFromString to avoid double-free
-    // (or potential leak with StrDup() based on ownership confusion).
-    ScopedVector<char> ignition_filter(64);
-    SNPrintF(ignition_filter, "--ignition-filter=%s", filter);
-    FlagList::SetFlagsFromString(ignition_filter.start(),
-                                 ignition_filter.length());
     // Ensure handler table is generated.
     isolate->interpreter()->Initialize();
   }
 
   InterpreterTester(Isolate* isolate, Handle<BytecodeArray> bytecode,
                     MaybeHandle<TypeFeedbackVector> feedback_vector =
                         MaybeHandle<TypeFeedbackVector>(),
                     const char* filter = kFunctionName)
       : InterpreterTester(isolate, nullptr, bytecode, feedback_vector, filter) {
   }
@@ skipping 4155 matching lines @@
     Handle<i::Object> return_value = callable().ToHandleChecked();
     CHECK(return_value->SameValue(*const_decl[i].second));
   }
 
   FLAG_legacy_const = old_flag_legacy_const;
 }
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8