[compiler] Remove CodeStub from CompilationInfo

src/codegen.cc

 // Copyright 2012 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/codegen.h"
 
 #if defined(V8_OS_AIX)
 #include <fenv.h>  // NOLINT(build/c++11)
 #endif
 #include "src/ast/prettyprinter.h"
@@ skipping 106 matching lines @@
            AstPrinter(info->isolate()).PrintProgram(info->literal()));
   }
 #endif  // DEBUG
 }
 
 
 Handle<Code> CodeGenerator::MakeCodeEpilogue(MacroAssembler* masm,
                                              CompilationInfo* info) {
   Isolate* isolate = info->isolate();
 
-  Code::Flags flags;
-  if (info->IsStub() && info->code_stub()) {
-    DCHECK_EQ(info->output_code_kind(), info->code_stub()->GetCodeKind());
-    flags = Code::ComputeFlags(
-        info->output_code_kind(), info->code_stub()->GetICState(),
-        info->code_stub()->GetExtraICState(), info->code_stub()->GetStubType());
-  } else {
-    flags = Code::ComputeFlags(info->output_code_kind());
-  }
-
   // Allocate and install the code.
   CodeDesc desc;
+  Code::Flags flags = info->code_flags();
   bool is_crankshafted =
       Code::ExtractKindFromFlags(flags) == Code::OPTIMIZED_FUNCTION ||
       info->IsStub();
   masm->GetCode(&desc);
   Handle<Code> code =
       isolate->factory()->NewCode(desc, flags, masm->CodeObject(),
                                   false, is_crankshafted,
                                   info->prologue_offset(),
                                   info->is_debug() && !is_crankshafted);
   isolate->counters()->total_compiled_code_size()->Increment(
@@ skipping 55 matching lines @@
       os << "source_position = " << literal->start_position() << "\n";
     }
     code->Disassemble(debug_name.get(), os);
     os << "--- End code ---\n";
   }
 #endif  // ENABLE_DISASSEMBLER
 }
 
 }  // namespace internal
 }  // namespace v8