Beginning work on GN build

runtime/vm/BUILD.gn

 # Copyright (c) 2014, 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.
 
 config("libdart_vm_config") {
   libs = [
     "dl",
   ]
 
   if (!is_android) {
@@ skipping 25 matching lines @@
                   ["../platform/platform_sources.gypi"])
   platform_sources =
       rebase_path(platform_sources_gypi.sources, ".", "../platform")
 
   sources = platform_headers + platform_sources
   include_dirs = [
     "..",
   ]
 }
 
+vm_sources_list = exec_script("../../tools/gypi_to_gn.py",
+                              [rebase_path("vm_sources.gypi")],
+                              "scope",
+                              ["vm_sources.gypi"])
+
 static_library("libdart_vm") {
   configs += ["..:dart_config",
               "..:dart_product_config",
               "..:dart_precompiled_runtime_config"]
   public_configs = [":libdart_vm_config"]
 
-  vm_sources_list = exec_script("../../tools/gypi_to_gn.py",
-                                [rebase_path("vm_sources.gypi")],
-                                "scope",
-                                ["vm_sources.gypi"])
-
   set_sources_assignment_filter(["*_test.cc", "*_test.h"])
   sources = vm_sources_list.sources
   include_dirs = [
     "..",
   ]
 }
 
 
 static_library("libdart_vm_nosnapshot") {
   configs += ["..:dart_config",
               "..:dart_product_config",
               "..:dart_precompiled_runtime_config"]
   public_configs = [":libdart_vm_config"]
   defines = [ "DART_NO_SNAPSHOT" ]
-  vm_sources_list = exec_script("../../tools/gypi_to_gn.py",
-                                [rebase_path("vm_sources.gypi")],
-                                "scope",
-                                ["vm_sources.gypi"])
 
   set_sources_assignment_filter(["*_test.cc", "*_test.h"])
   sources = vm_sources_list.sources
   include_dirs = [
     "..",
   ]
 }
 
 
 static_library("libdart_vm_nosnapshot_with_precompiler") {
   configs += ["..:dart_config",
               "..:dart_product_config",
               "..:dart_precompiler_config"]
   public_configs = [":libdart_vm_config"]
   defines = [ "DART_NO_SNAPSHOT" ]
-  vm_sources_list = exec_script("../../tools/gypi_to_gn.py",
-                                [rebase_path("vm_sources.gypi")],
-                                "scope",
-                                ["vm_sources.gypi"])
 
   set_sources_assignment_filter(["*_test.cc", "*_test.h"])
   sources = vm_sources_list.sources
   include_dirs = [
     "..",
   ]
 }
 
 
 template("generate_library_source") {
@@ skipping 127 matching lines @@
     ["developer", "developer", true, "../../sdk/lib/developer", "../lib"],
     ["_internal", "internal", true, "../../sdk/lib/internal", "../lib"],
     ["isolate", "isolate", true, "../../sdk/lib/isolate", "../lib"],
     ["math", "math", true, "../../sdk/lib/math", "../lib"],
     ["mirrors", "mirrors", true, "../../sdk/lib/mirrors", "../lib"],
     ["profiler", "profiler", false, "../../sdk/lib/profiler"],
     ["typed_data", "typed_data", false, "../lib"],
     ["_vmservice", "vmservice", true, "../../sdk/lib/vmservice", "../lib"],
   ]
 }