1. Figure out the modified libraries from the specifeid kernel file during

runtime/bin/dfe.h

 // Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_BIN_DFE_H_
 #define RUNTIME_BIN_DFE_H_
 
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
 #include "platform/assert.h"
@@ skipping 20 matching lines @@
   bool UsePlatformBinary() const { return platform_binary_filename_ != NULL; }
 
   void* kernel_platform() const { return kernel_platform_; }
   void set_kernel_platform(void* kernel_platform) {
     kernel_platform_ = kernel_platform;
   }
 
   bool kernel_file_specified() const { return kernel_file_specified_; }
   void set_kernel_file_specified(bool value) { kernel_file_specified_ = value; }
 
-  // Method to reload a script into a running a isolate.
+  // Method to read a kernel file into a kernel program blob.
   // If the specified script [url] is not a kernel IR, compile it first using
-  // DFE and then reload the resulting kernel IR into the isolate.
+  // DFE and then read the resulting kernel file into a kernel program blob.
   // Returns Dart_Null if successful, otherwise an error object is returned.
-  Dart_Handle ReloadScript(Dart_Isolate isolate, const char* url_string);
+  Dart_Handle ReadKernelBinary(Dart_Isolate isolate, const char* url_string);
 
   // Compiles a script and reads the resulting kernel file.
   // If the compilation is successful, returns a valid in memory kernel
   // representation of the script, NULL otherwise
   // 'error' and 'exit_code' have the error values in case of errors.
   void* CompileAndReadScript(const char* script_uri,
                              char** error,
                              int* exit_code);
 
   // Reads the platform kernel file.
@@ skipping 25 matching lines @@
   void* kernel_platform_;
   bool kernel_file_specified_;  // Kernel file was specified on the cmd line.
 
   DISALLOW_COPY_AND_ASSIGN(DFE);
 };
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // RUNTIME_BIN_DFE_H_