Only guard the eager compile hint by whether the target literal was same-zone parsed

src/ast/ast.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/ast/ast.h"
 
 #include <cmath>  // For isfinite.
 
 #include "src/ast/compile-time-value.h"
 #include "src/ast/prettyprinter.h"
@@ skipping 275 matching lines @@
     default: UNREACHABLE();
   }
   return Token::ILLEGAL;
 }
 
 bool FunctionLiteral::ShouldEagerCompile() const {
   return scope()->ShouldEagerCompile();
 }
 
 void FunctionLiteral::SetShouldEagerCompile() {
+  if (body_ == nullptr) return;
   scope()->SetShouldEagerCompile();
 }
 
 bool FunctionLiteral::AllowsLazyCompilation() {
   return scope()->AllowsLazyCompilation();
 }
 
 
 int FunctionLiteral::start_position() const {
   return scope()->start_position();
@@ skipping 654 matching lines @@
 // static
 bool Literal::Match(void* literal1, void* literal2) {
   const AstValue* x = static_cast<Literal*>(literal1)->raw_value();
   const AstValue* y = static_cast<Literal*>(literal2)->raw_value();
   return (x->IsString() && y->IsString() && x->AsString() == y->AsString()) ||
          (x->IsNumber() && y->IsNumber() && x->AsNumber() == y->AsNumber());
 }
 
 }  // namespace internal
 }  // namespace v8