[Interpreter] Add native function literal support.

src/compiler.h

 // 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.
 
 #ifndef V8_COMPILER_H_
 #define V8_COMPILER_H_
 
 #include "src/allocation.h"
 #include "src/ast/ast.h"
 #include "src/bailout-reason.h"
@@ skipping 603 matching lines @@
       NativesFlag is_natives_code, bool is_module);
 
   static Handle<SharedFunctionInfo> CompileStreamedScript(Handle<Script> script,
                                                           ParseInfo* info,
                                                           int source_length);
 
   // Create a shared function info object (the code may be lazily compiled).
   static Handle<SharedFunctionInfo> GetSharedFunctionInfo(
       FunctionLiteral* node, Handle<Script> script, CompilationInfo* outer);
 
+  // Create a shared function info object for a native function literal.
+  static Handle<SharedFunctionInfo> GetSharedFunctionInfoForNative(
+      v8::Extension* extension, Handle<String> name);
+
   enum ConcurrencyMode { NOT_CONCURRENT, CONCURRENT };
 
   // Generate and return optimized code or start a concurrent optimization job.
   // In the latter case, return the InOptimizationQueue builtin.  On failure,
   // return the empty handle.
   MUST_USE_RESULT static MaybeHandle<Code> GetOptimizedCode(
       Handle<JSFunction> function, ConcurrencyMode mode,
       BailoutId osr_ast_id = BailoutId::None(),
       JavaScriptFrame* osr_frame = nullptr);
 
@@ skipping 23 matching lines @@
   size_t info_zone_start_allocation_size_;
   base::ElapsedTimer timer_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationPhase);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_H_