[bazel] Use bazel/config from within the main repository.

There is no reason for bazel/config to be used as an external dependency
(we can replace "@v8//bazel/config" as easily as "@config") and it makes
integration with other Bazel workspaces much harded than it needs to be.
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
Change-Id: Idb818c3237d6840ebaa1dfc85b8be686b06d8a2f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3331591Reviewed-by: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#78486}

WORKSPACE

@@ -16,12 +16,6 @@ http_archive(
 load("@bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")
 bazel_skylib_workspace()
 
-new_local_repository(
-    name = "config",
-    path = "bazel/config",
-    build_file = "bazel/config/BUILD.bazel",
-)
-
 new_local_repository(
     name = "zlib",
     path = "third_party/zlib",

bazel/defs.bzl

@@ -89,7 +89,7 @@ def _default_args():
     return struct(
         deps = [":define_flags"],
         defines = select({
-            "@config//:is_windows": [
+            "@v8//bazel/config:is_windows": [
                 "UNICODE",
                 "_UNICODE",
                 "_CRT_RAND_S",
@@ -98,7 +98,7 @@ def _default_args():
             "//conditions:default": [],
         }),
         copts = select({
-            "@config//:is_posix": [
+            "@v8//bazel/config:is_posix": [
                 "-fPIC",
                 "-Werror",
                 "-Wextra",
@@ -115,12 +115,12 @@ def _default_args():
         }),
         includes = ["include"],
         linkopts = select({
-            "@config//:is_windows": [
+            "@v8//bazel/config:is_windows": [
                 "Winmm.lib",
                 "DbgHelp.lib",
                 "Advapi32.lib",
             ],
-            "@config//:is_macos": ["-pthread"],
+            "@v8//bazel/config:is_macos": ["-pthread"],
             "//conditions:default": ["-Wl,--no-as-needed -ldl -pthread"],
         }) + select({
             ":should_add_rdynamic": ["-rdynamic"],
@@ -313,7 +313,7 @@ def v8_torque(name, noicu_srcs, icu_srcs, args, extras):
         args = args,
         extras = extras,
         tool = select({
-            "@config//:v8_target_is_32_bits": ":torque_non_pointer_compression",
+            "@v8//bazel/config:v8_target_is_32_bits": ":torque_non_pointer_compression",
             "//conditions:default": ":torque",
         }),
     )
@@ -324,7 +324,7 @@ def v8_torque(name, noicu_srcs, icu_srcs, args, extras):
         args = args,
         extras = extras,
         tool = select({
-            "@config//:v8_target_is_32_bits": ":torque_non_pointer_compression",
+            "@v8//bazel/config:v8_target_is_32_bits": ":torque_non_pointer_compression",
             "//conditions:default": ":torque",
         }),
     )
@@ -343,14 +343,14 @@ def _v8_target_cpu_transition_impl(settings, attr):
         "armeabi-v7a": "arm32",
     }
     v8_target_cpu = mapping[settings["//command_line_option:cpu"]]
-    return {"@config//:v8_target_cpu": v8_target_cpu}
+    return {"@v8//bazel/config:v8_target_cpu": v8_target_cpu}
 
 # Set the v8_target_cpu to be the correct architecture given the cpu specified
 # on the command line.
 v8_target_cpu_transition = transition(
     implementation = _v8_target_cpu_transition_impl,
     inputs = ["//command_line_option:cpu"],
-    outputs = ["@config//:v8_target_cpu"],
+    outputs = ["@v8//bazel/config:v8_target_cpu"],
 )
 
 def _mksnapshot(ctx):