Do not record source positions for non-JS or native script code.

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/asmjs/asm-js.h"
 #include "src/asmjs/typing-asm.h"
@@ skipping 206 matching lines @@
   }
 }
 
 int CompilationInfo::GetDeclareGlobalsFlags() const {
   DCHECK(DeclareGlobalsLanguageMode::is_valid(parse_info()->language_mode()));
   return DeclareGlobalsEvalFlag::encode(parse_info()->is_eval()) |
          DeclareGlobalsNativeFlag::encode(parse_info()->is_native()) |
          DeclareGlobalsLanguageMode::encode(parse_info()->language_mode());
 }
 
+SourcePositionTableBuilder::RecordingMode
+CompilationInfo::SourcePositionRecordingMode() const {
+  return parse_info() && parse_info()->is_native()
+             ? SourcePositionTableBuilder::OMIT_SOURCE_POSITIONS
+             : SourcePositionTableBuilder::RECORD_SOURCE_POSITIONS;
+}
+
 bool CompilationInfo::ExpectsJSReceiverAsReceiver() {
   return is_sloppy(parse_info()->language_mode()) && !parse_info()->is_native();
 }
 
 #if DEBUG
 void CompilationInfo::PrintAstForTesting() {
   PrintF("--- Source from AST ---\n%s\n",
          PrettyPrinter(isolate()).PrintProgram(literal()));
 }
 #endif
@@ skipping 1588 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