Use source position table for unoptimized code.

src/full-codegen/full-codegen.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_FULL_CODEGEN_FULL_CODEGEN_H_
 #define V8_FULL_CODEGEN_FULL_CODEGEN_H_
 
 #include "src/allocation.h"
 #include "src/assert-scope.h"
 #include "src/ast/ast.h"
@@ skipping 29 matching lines @@
         try_catch_depth_(0),
         operand_stack_depth_(0),
         globals_(NULL),
         context_(NULL),
         bailout_entries_(info->HasDeoptimizationSupport()
                              ? info->literal()->ast_node_count()
                              : 0,
                          info->zone()),
         back_edges_(2, info->zone()),
         handler_table_(info->zone()),
+        source_position_table_builder_(info->isolate(), info->zone()),
         ic_total_count_(0) {
     DCHECK(!info->IsStub());
     Initialize();
   }
 
   void Initialize();
 
   static bool MakeCode(CompilationInfo* info);
 
   // Encode bailout state and pc-offset as a BitField<type, start, size>.
@@ skipping 618 matching lines @@
   void SetExpressionAsStatementPosition(Expression* expr);
 
   void SetCallPosition(Expression* expr,
                        TailCallMode tail_call_mode = TailCallMode::kDisallow);
 
   void SetConstructCallPosition(Expression* expr) {
     // Currently call and construct calls are treated the same wrt debugging.
     SetCallPosition(expr);
   }
 
+  void RecordStatementPosition(int pos);
+  void RecordPosition(int pos);
+
   // Non-local control flow support.
   void EnterTryBlock(int handler_index, Label* handler);
   void ExitTryBlock(int handler_index);
   void EnterFinallyBlock();
   void ExitFinallyBlock();
   void ClearPendingMessage();
 
   void EmitContinue(Statement* target);
   void EmitBreak(Statement* target);
 
@@ skipping 272 matching lines @@
   int loop_depth_;
   int try_catch_depth_;
   int operand_stack_depth_;
   ZoneList<Handle<Object> >* globals_;
   Handle<FixedArray> modules_;
   int module_index_;
   const ExpressionContext* context_;
   ZoneList<BailoutEntry> bailout_entries_;
   ZoneList<BackEdgeEntry> back_edges_;
   ZoneVector<HandlerTableEntry> handler_table_;
+  SourcePositionTableBuilder source_position_table_builder_;
   int ic_total_count_;
   Handle<Cell> profiling_counter_;
 
   friend class NestedStatement;
 
   DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
   DISALLOW_COPY_AND_ASSIGN(FullCodeGenerator);
 };
 
 
@@ skipping 66 matching lines @@
   Address start_;
   Address instruction_start_;
   uint32_t length_;
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FULL_CODEGEN_FULL_CODEGEN_H_