[interpreter] statement position always overwrites earlier positions.

src/interpreter/bytecode-array-builder.cc

Index: src/interpreter/bytecode-array-builder.cc
diff --git a/src/interpreter/bytecode-array-builder.cc b/src/interpreter/bytecode-array-builder.cc
index e746748a429142c589e7fa860658810a149d245b..109b01eab321fbe067630362b3e66f67f5d7718c 100644
--- a/src/interpreter/bytecode-array-builder.cc
+++ b/src/interpreter/bytecode-array-builder.cc
@@ -1075,9 +1075,8 @@ size_t BytecodeArrayBuilder::GetConstantPoolEntry(Handle<Object> object) {
 void BytecodeArrayBuilder::SetReturnPosition() {
   if (return_position_ == RelocInfo::kNoPosition) return;
   if (exit_seen_in_block_) return;
-  source_position_table_builder_.AddStatementPosition(
-      bytecodes_.size(), return_position_,
-      SourcePositionTableBuilder::OVERWRITE_DUPLICATE);
+  source_position_table_builder_.AddStatementPosition(bytecodes_.size(),
+                                                      return_position_);
 }
 
 void BytecodeArrayBuilder::SetStatementPosition(Statement* stmt) {