Add GN targets for codesighs and telemetry

third_party/codesighs/BUILD.gn

+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/config/features.gni")
+
+executable("codesighs") {
+  sources = [
+    "codesighs.c",
+  ]
+
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [ "//build/config/compiler:no_chromium_code" ]
+}
+
+executable("maptsvdifftool") {
+  sources = [
+    "maptsvdifftool.c",
+  ]
+
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [ "//build/config/compiler:no_chromium_code" ]
+}
+
+if (is_win) {
+  executable("msmap2tsv") {
+    sources = [
+      "msmap2tsv.c",
+    ]
+
+    libs += [ "dbghelp.lib" ]
+
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+
+  executable("msdump2symdb") {
+    sources = [
+      "msdump2symdb.c",
+    ]
+
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+} else {
+  executable("nm2tsv") {
+    sources = [
+      "nm2tsv.c",
+    ]
+
+    configs -= [ "//build/config/compiler:chromium_code" ]
+    configs += [ "//build/config/compiler:no_chromium_code" ]
+  }
+}