[objects] Remove AbstractCode::set_source_position_table.

R=bmeurer@chromium.org
BUG=v8:6792

Change-Id: I9f3be5304917215283643385ba4a216023c822ab
Reviewed-on: https://chromium-review.googlesource.com/725800
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48732}

src/debug/liveedit.cc

@@ -945,13 +945,13 @@ static int TranslatePosition(int original_position,
   return original_position + position_diff;
 }
 
-void TranslateSourcePositionTable(Handle<AbstractCode> code,
+void TranslateSourcePositionTable(Handle<BytecodeArray> code,
                                   Handle<JSArray> position_change_array) {
   Isolate* isolate = code->GetIsolate();
   Zone zone(isolate->allocator(), ZONE_NAME);
   SourcePositionTableBuilder builder(&zone);
 
-  Handle<ByteArray> source_position_table(code->source_position_table());
+  Handle<ByteArray> source_position_table(code->SourcePositionTable());
   for (SourcePositionTableIterator iterator(*source_position_table);
        !iterator.done(); iterator.Advance()) {
     SourcePosition position = iterator.source_position();
@@ -962,7 +962,7 @@ void TranslateSourcePositionTable(Handle<AbstractCode> code,
   }
 
   Handle<ByteArray> new_source_position_table(
-      builder.ToSourcePositionTable(isolate, code));
+      builder.ToSourcePositionTable(isolate, Handle<AbstractCode>::cast(code)));
   code->set_source_position_table(*new_source_position_table);
 }
 }  // namespace
@@ -985,9 +985,8 @@ void LiveEdit::PatchFunctionPositions(Handle<JSArray> shared_info_array,
   info->set_function_token_position(new_function_token_pos);
 
   if (info->HasBytecodeArray()) {
-    TranslateSourcePositionTable(
-        Handle<AbstractCode>(AbstractCode::cast(info->bytecode_array())),
-        position_change_array);
+    TranslateSourcePositionTable(handle(info->bytecode_array()),
+                                 position_change_array);
   }
   if (info->HasBreakInfo()) {
     // Existing break points will be re-applied. Reset the debug info here.

src/objects/code-inl.h

@@ -42,14 +42,6 @@ ByteArray* AbstractCode::source_position_table() {
   }
 }
 
-void AbstractCode::set_source_position_table(ByteArray* source_position_table) {
-  if (IsCode()) {
-    GetCode()->set_source_position_table(source_position_table);
-  } else {
-    GetBytecodeArray()->set_source_position_table(source_position_table);
-  }
-}
-
 Object* AbstractCode::stack_frame_cache() {
   Object* maybe_table;
   if (IsCode()) {

src/objects/code.h

@@ -560,9 +560,6 @@ class AbstractCode : public HeapObject {
   // Return the source position table.
   inline ByteArray* source_position_table();
 
-  // Set the source position table.
-  inline void set_source_position_table(ByteArray* source_position_table);
-
   inline Object* stack_frame_cache();
   static void SetStackFrameCache(Handle<AbstractCode> abstract_code,
                                  Handle<UnseededNumberDictionary> cache);