Revert "Add Kernel Isolate"

runtime/bin/main.cc

Index: runtime/bin/main.cc
diff --git a/runtime/bin/main.cc b/runtime/bin/main.cc
index 4c9182caa42a7206597bd4728678f4bb8fb34654..0adf4ac957f8fd899344dea432b59a09f37366df 100644
--- a/runtime/bin/main.cc
+++ b/runtime/bin/main.cc
@@ -61,10 +61,6 @@ enum SnapshotKind {
 };
 static SnapshotKind gen_snapshot_kind = kNone;
 
-static bool use_dart_frontend = false;
-
-static const char* frontend_filename = NULL;
-
 // Value of the --package-root flag.
 // (This pointer points into an argv buffer and does not need to be
 // free'd.)
@@ -328,18 +324,6 @@ static bool ProcessParseAllOption(const char* arg,
 }
 
 
-static bool ProcessFrontendOption(const char* filename,
-                                  CommandLineOptions* vm_options) {
-  ASSERT(filename != NULL);
-  if (filename[0] == '\0') {
-    return false;
-  }
-  use_dart_frontend = true;
-  frontend_filename = filename;
-  return true;
-}
-
-
 static bool ProcessUseBlobsOption(const char* arg,
                                   CommandLineOptions* vm_options) {
   ASSERT(arg != NULL);
@@ -556,7 +540,6 @@ static struct {
     // VM specific options to the standalone dart program.
     {"--compile_all", ProcessCompileAllOption},
     {"--parse_all", ProcessParseAllOption},
-    {"--dfe=", ProcessFrontendOption},
     {"--enable-vm-service", ProcessEnableVmServiceOption},
     {"--disable-service-origin-check", ProcessDisableServiceOriginCheckOption},
     {"--observe", ProcessObserveOption},
@@ -808,16 +791,6 @@ static Dart_Isolate CreateIsolateAndSetupHelper(const char* script_uri,
       (strcmp(script_uri, DART_VM_SERVICE_ISOLATE_NAME) == 0)) {
     return NULL;
   }
-  if (strcmp(script_uri, DART_KERNEL_ISOLATE_NAME) == 0) {
-    if (!use_dart_frontend) {
-      *error = strdup("Kernel isolate not supported.");
-      return NULL;
-    } else {
-      if (packages_config == NULL) {
-        packages_config = commandline_packages_file;
-      }
-    }
-  }
 
   // If the script is a Kernel binary, then we will try to bootstrap from the
   // script.
@@ -897,10 +870,6 @@ static Dart_Isolate CreateIsolateAndSetupHelper(const char* script_uri,
     CHECK_RESULT(result);
   }
 
-  if (Dart_IsKernelIsolate(isolate)) {
-    script_uri = frontend_filename;
-  }
-
   // Setup package root if specified.
   result = DartUtils::SetupPackageRoot(package_root, packages_config);
   CHECK_RESULT(result);
@@ -908,17 +877,6 @@ static Dart_Isolate CreateIsolateAndSetupHelper(const char* script_uri,
   result = Dart_SetEnvironmentCallback(EnvironmentCallback);
   CHECK_RESULT(result);
 
-  if (!Dart_IsKernelIsolate(isolate) && use_dart_frontend) {
-    Log::PrintErr("Waiting for Kernel isolate to load.\n");
-    // This must be the main script to be loaded. Wait for Kernel isolate
-    // to finish initialization.
-    Dart_Port port = Dart_ServiceWaitForKernelPort();
-    if (port == ILLEGAL_PORT) {
-      *error = strdup("Error while initializing Kernel isolate");
-      return NULL;
-    }
-  }
-
   if (run_app_snapshot) {
     result = DartUtils::SetupIOLibrary(script_uri);
     CHECK_RESULT(result);