[compiler] Workaround in code printing without literal.

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 143 matching lines @@
          (info->IsOptimizing() && FLAG_print_opt_code));
   if (print_code) {
     base::SmartArrayPointer<char> debug_name = info->GetDebugName();
     CodeTracer::Scope tracing_scope(info->isolate()->GetCodeTracer());
     OFStream os(tracing_scope.file());
 
     // Print the source code if available.
     bool print_source =
         info->parse_info() && (code->kind() == Code::OPTIMIZED_FUNCTION ||
                                code->kind() == Code::FUNCTION);
+    // TODO(mstarzinger): Switch this over to use SharedFunctionInfo instead of
+    // the FunctionLiteral, once we have a SharedFunctionInfo for live edit.
+    print_source = print_source && info->literal() != nullptr;
     if (print_source) {
       FunctionLiteral* literal = info->literal();
       Handle<Script> script = info->script();
       if (!script->IsUndefined() && !script->source()->IsUndefined()) {
         os << "--- Raw source ---\n";
         StringCharacterStream stream(String::cast(script->source()),
                                      literal->start_position());
         // fun->end_position() points to the last character in the stream. We
         // need to compensate by adding one to calculate the length.
         int source_len =
@@ skipping 21 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