[inspector] fix positions for single expression arrow function

src/parsing/preparser.h

Index: src/parsing/preparser.h
diff --git a/src/parsing/preparser.h b/src/parsing/preparser.h
index ac41f1a8724aeb62e444a99ce28ec80b43875244..e45e2f070c7023237cb1772531486774df3e6b34 100644
--- a/src/parsing/preparser.h
+++ b/src/parsing/preparser.h
@@ -661,7 +661,8 @@ class PreParserFactory {
       int parameter_count, int function_length,
       FunctionLiteral::ParameterFlag has_duplicate_parameters,
       FunctionLiteral::FunctionType function_type,
-      FunctionLiteral::EagerCompileHint eager_compile_hint, int position) {
+      FunctionLiteral::EagerCompileHint eager_compile_hint, int position,
+      bool has_braces) {
     return PreParserExpression::Default();
   }