Revert of [Intepreter] Always use BytecodeGraphBuilder when --turbo-from-bytecode

test/cctest/compiler/function-tester.h

 // Copyright 2014 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.
 
 #ifndef V8_CCTEST_COMPILER_FUNCTION_TESTER_H_
 #define V8_CCTEST_COMPILER_FUNCTION_TESTER_H_
 
 #include "src/ast/ast-numbering.h"
 #include "src/ast/scopes.h"
 #include "src/compiler.h"
@@ skipping 190 matching lines @@
 
  private:
   uint32_t flags_;
 
   Handle<JSFunction> Compile(Handle<JSFunction> function) {
     Zone zone(function->GetIsolate()->allocator());
     ParseInfo parse_info(&zone, function);
     CompilationInfo info(&parse_info, function);
     info.MarkAsDeoptimizationEnabled();
 
-    if (!FLAG_turbo_from_bytecode) {
-      CHECK(Parser::ParseStatic(info.parse_info()));
-    }
+    CHECK(Parser::ParseStatic(info.parse_info()));
     info.SetOptimizing();
     if (flags_ & CompilationInfo::kFunctionContextSpecializing) {
       info.MarkAsFunctionContextSpecializing();
     }
     if (flags_ & CompilationInfo::kInliningEnabled) {
       info.MarkAsInliningEnabled();
     }
-    if (FLAG_turbo_from_bytecode) {
-      CHECK(Compiler::EnsureBytecode(&info));
+    if (FLAG_turbo_from_bytecode && function->shared()->HasBytecodeArray()) {
       info.MarkAsOptimizeFromBytecode();
     } else {
       CHECK(Compiler::Analyze(info.parse_info()));
       CHECK(Compiler::EnsureDeoptimizationSupport(&info));
     }
     JSFunction::EnsureLiterals(function);
 
     Handle<Code> code = Pipeline::GenerateCodeForTesting(&info);
     CHECK(!code.is_null());
     info.dependencies()->Commit(code);
@@ skipping 29 matching lines @@
     CHECK(!code.is_null());
     function->ReplaceCode(*code);
     return function;
   }
 };
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CCTEST_COMPILER_FUNCTION_TESTER_H_