Introduce LiteralsArray to hide it's implementation.

src/compiler.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/compiler.h"
 
 #include <algorithm>
 
 #include "src/ast-numbering.h"
 #include "src/bootstrapper.h"
@@ skipping 770 matching lines @@
   // Frame specialization implies function context specialization.
   DCHECK(!info->is_frame_specializing());
 
   // Do not cache bound functions.
   Handle<JSFunction> function = info->closure();
   if (function->shared()->bound()) return;
 
   // Cache optimized context-specific code.
   if (FLAG_cache_optimized_code) {
     Handle<SharedFunctionInfo> shared(function->shared());
-    Handle<FixedArray> literals(function->literals());
+    Handle<LiteralsArray> literals(function->literals());
     Handle<Context> native_context(function->context()->native_context());
     SharedFunctionInfo::AddToOptimizedCodeMap(shared, native_context, code,
                                               literals, info->osr_ast_id());
   }
 
   // Do not cache context-independent code compiled for OSR.
   if (code->is_turbofanned() && info->is_osr()) return;
 
   // Cache optimized context-independent code.
   if (FLAG_turbo_cache_shared_code && code->is_turbofanned()) {
@@ skipping 959 matching lines @@
 }
 
 #if DEBUG
 void CompilationInfo::PrintAstForTesting() {
   PrintF("--- Source from AST ---\n%s\n",
          PrettyPrinter(isolate(), zone()).PrintProgram(literal()));
 }
 #endif
 }  // namespace internal
 }  // namespace v8