[interpreter] Add some bytecode tests for modules.

test/cctest/interpreter/generate-bytecode-expectations.cc

Index: test/cctest/interpreter/generate-bytecode-expectations.cc
diff --git a/test/cctest/interpreter/generate-bytecode-expectations.cc b/test/cctest/interpreter/generate-bytecode-expectations.cc
index ed1c692050ce3c0f792e2dae4c7dc25a912aa548..1adfc6a89966a50b755516dcd832645ddc73e193 100644
--- a/test/cctest/interpreter/generate-bytecode-expectations.cc
+++ b/test/cctest/interpreter/generate-bytecode-expectations.cc
@@ -40,6 +40,7 @@ class ProgramOptions final {
         read_from_stdin_(false),
         rebaseline_(false),
         wrap_(true),
+        module_(false),
         top_level_(false),
         do_expressions_(false),
         verbose_(false) {}
@@ -57,6 +58,7 @@ class ProgramOptions final {
   }
   bool rebaseline() const { return rebaseline_; }
   bool wrap() const { return wrap_; }
+  bool module() const { return module_; }
   bool top_level() const { return top_level_; }
   bool do_expressions() const { return do_expressions_; }
   bool verbose() const { return verbose_; }
@@ -72,6 +74,7 @@ class ProgramOptions final {
   bool read_from_stdin_;
   bool rebaseline_;
   bool wrap_;
+  bool module_;
   bool top_level_;
   bool do_expressions_;
   bool verbose_;
@@ -157,6 +160,8 @@ ProgramOptions ProgramOptions::FromCommandLine(int argc, char** argv) {
       options.rebaseline_ = true;
     } else if (strcmp(argv[i], "--no-wrap") == 0) {
       options.wrap_ = false;
+    } else if (strcmp(argv[i], "--module") == 0) {
+      options.module_ = true;
     } else if (strcmp(argv[i], "--top-level") == 0) {
       options.top_level_ = true;
     } else if (strcmp(argv[i], "--do-expressions") == 0) {
@@ -235,6 +240,12 @@ bool ProgramOptions::Validate() const {
     return false;
   }
 
+  if (module_ && (!top_level_ || wrap_)) {
+    REPORT_ERROR(
+        "The flag --module currently requires --top-level and --no-wrap.");
+    return false;
+  }
+
   return true;
 }
 
@@ -247,7 +258,9 @@ void ProgramOptions::UpdateFromHeader(std::istream& stream) {
   }
 
   while (std::getline(stream, line)) {
-    if (line.compare(0, 6, "wrap: ") == 0) {
+    if (line.compare(0, 8, "module: ") == 0) {
+      module_ = ParseBoolean(line.c_str() + 8);
+    } else if (line.compare(0, 6, "wrap: ") == 0) {
       wrap_ = ParseBoolean(line.c_str() + 6);
     } else if (line.compare(0, 20, "test function name: ") == 0) {
       test_function_name_ = line.c_str() + 20;
@@ -274,6 +287,7 @@ void ProgramOptions::PrintHeader(std::ostream& stream) const {  // NOLINT
     stream << "\ntest function name: " << test_function_name_;
   }
 
+  if (module_) stream << "\nmodule: yes";
   if (top_level_) stream << "\ntop level: yes";
   if (do_expressions_) stream << "\ndo expressions: yes";
 
@@ -373,6 +387,7 @@ void GenerateExpectationsFile(std::ostream& stream,  // NOLINT
 
   BytecodeExpectationsPrinter printer(platform.isolate());
   printer.set_wrap(options.wrap());
+  printer.set_module(options.module());
   printer.set_top_level(options.top_level());
   if (!options.test_function_name().empty()) {
     printer.set_test_function_name(options.test_function_name());
@@ -426,6 +441,7 @@ void PrintUsage(const char* exec_path) {
          "  --stdin   Read from standard input instead of file.\n"
          "  --rebaseline  Rebaseline input snippet file.\n"
          "  --no-wrap     Do not wrap the snippet in a function.\n"
+         "  --module      Compile as JavaScript module.\n"
          "  --test-function-name=foo  "
          "Specify the name of the test function.\n"
          "  --top-level   Process top level code, not the top-level function.\n"