[inspector] added test infrastructure and test for es6 modules

src/ast/scopes.cc

Index: src/ast/scopes.cc
diff --git a/src/ast/scopes.cc b/src/ast/scopes.cc
index ad1c137753e475963467df4a934f414f9d649161..767e2953dd7b2a22bc0720190d8750aa873c7f65 100644
--- a/src/ast/scopes.cc
+++ b/src/ast/scopes.cc
@@ -1883,6 +1883,11 @@ void Scope::ResolveVariablesRecursively(ParseInfo* info) {
 VariableProxy* Scope::FetchFreeVariables(DeclarationScope* max_outer_scope,
                                          ParseInfo* info,
                                          VariableProxy* stack) {
+  // Module variables must be allocated before variable resolution
+  // to ensure that AccessNeedsHoleCheck() can detect import variables.
+  if (info != nullptr && is_module_scope()) {
+    AsModuleScope()->AllocateModuleVariables();
+  }
   // Lazy parsed declaration scopes are already partially analyzed. If there are
   // unresolved references remaining, they just need to be resolved in outer
   // scopes.