experimental ES6-style code generation

Author: gonzojive

.gitignore

@@ -11,3 +11,8 @@ bazel-*
 /google-protobuf-*.tgz
 /conformance/protos/*.js
 /conformance/package-lock.json
+/google-protobuf.js.map
+/external
+/bazel-*
+/.cache/
+

BUILD.bazel

@@ -93,5 +93,5 @@ filegroup(
     srcs = [
         ":dist_tar",
         ":dist_zip",
-    ]
+    ],
 )

generator/BUILD.bazel

@@ -18,14 +18,14 @@ cc_binary(
     ],
     visibility = ["//visibility:public"],
     deps = [
+        "@abseil-cpp//absl/strings:str_format",
         "@com_google_protobuf//:protobuf",
         "@com_google_protobuf//src/google/protobuf/compiler:code_generator",
         "@com_google_protobuf//src/google/protobuf/io",
         "@com_google_protobuf//src/google/protobuf/io:printer",
         "@com_google_protobuf//src/google/protobuf/io:tokenizer",
         "@com_google_protobuf//:protoc_lib",
         "@abseil-cpp//absl/strings",
-        "@abseil-cpp//absl/strings:str_format",
     ],
 )