[interpreter] Compiler shortcut when bytecode present.

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 <memory>
 
 #include "src/asmjs/asm-js.h"
@@ skipping 1015 matching lines @@
       }
       DCHECK(function->shared()->is_compiled());
       return cached_code;
     }
   }
 
   if (function->shared()->is_compiled()) {
     return Handle<Code>(function->shared()->code());
   }
 
+  if (function->shared()->HasBytecodeArray()) {
+    Handle<Code> entry = isolate->builtins()->InterpreterEntryTrampoline();
+    function->shared()->ReplaceCode(*entry);
+    return entry;
+  }
+
   Zone zone(isolate->allocator());
   ParseInfo parse_info(&zone, function);
   CompilationInfo info(&parse_info, function);
   Handle<Code> result;
   ASSIGN_RETURN_ON_EXCEPTION(isolate, result, GetUnoptimizedCode(&info), Code);
 
   if (FLAG_always_opt) {
     Handle<Code> opt_code;
     if (GetOptimizedCode(function, Compiler::NOT_CONCURRENT)
             .ToHandle(&opt_code)) {
@@ skipping 907 matching lines @@
     DCHECK(shared->is_compiled());
     function->set_literals(cached.literals);
   } else if (shared->is_compiled()) {
     // TODO(mvstanton): pass pretenure flag to EnsureLiterals.
     JSFunction::EnsureLiterals(function);
   }
 }
 
 }  // namespace internal
 }  // namespace v8