Desciption: Deal with the "use after free" error

occurs while debugging ark_js_vm executable on
windows.

Details: Enclose the part where the LocalScope
object should take effect with a pair of braces.
Thus, the destructor of the LocalScope object
will be called at the right brace which is above
the JSNApi::DestroyJSVM() function.

Issue: https://gitee.com/openharmony/ark_js_runtime/issues/I5C7XG

Signed-off-by: Gongyuhang <gongyuhang5@huawei.com>

ecmascript/compiler/aot_compiler.cpp

@@ -110,6 +110,7 @@ int Main(const int argc, const char **argv)
         return -1;
     }
 
+    {
         LocalScope scope(vm);
         std::string entry = entrypoint.GetValue();
         arg_list_t pandaFileNames = files.GetValue();
@@ -133,6 +134,8 @@ int Main(const int argc, const char **argv)
         }
         generator.SaveAOTFile(outputFileName);
         generator.GenerateSnapshotFile();
+    }
+
     JSNApi::DestroyJSVM(vm);
     paParser.DisableTail();
     return ret ? 0 : -1;

ecmascript/js_vm/main.cpp

@@ -109,6 +109,7 @@ int Main(const int argc, const char **argv)
         return -1;
     }
 
+    {
         LocalScope scope(vm);
         std::string entry = entrypoint.GetValue();
 
@@ -121,6 +122,7 @@ int Main(const int argc, const char **argv)
                 break;
             }
         }
+    }
 
     JSNApi::DestroyJSVM(vm);
     paParser.DisableTail();