Sync .gitignore with the corresponding svn properties.

runtime/.gitignore

Index: runtime/.gitignore
diff --git a/runtime/.gitignore b/runtime/.gitignore
index b15ff68a7eab436f05d6493ec3541943c488f403..955753f6369dc907fd630c82dc577dae4f9060eb 100644
--- a/runtime/.gitignore
+++ b/runtime/.gitignore
@@ -1,3 +1,47 @@
-# Always include the bin directory here as it contains the source code
-# for the dart executable.
-!bin
+/*.filters
+/*.user
+/dart-runtime.sln
+/*.vcproj
+/*.vcxproj
+/dart_no_snapshot.target.mk
+/dart-runtime.Makefile
+/dart-runtime.xcodeproj
+/dart.target.mk
+/generate_builtin_cc_file.target.mk
+/generate_corelib_cc_file.target.mk
+/generate_corelib_impl_cc_file.target.mk
+/generate_io_cc_file.target.mk
+/generate_isolate_cc_file.target.mk
+/generate_json_cc_file.target.mk
+/generate_mirrors_cc_file.target.mk
+/generate_snapshot_file.target.mk
+/generate_snapshot_test_dat_file.target.mk
+/generate_uri_cc_file.target.mk
+/generate_utf_cc_file.target.mk
+/gen_snapshot.target.mk
+/libdart_builtin.target.mk
+/libdart_export.target.mk
+/libdart_lib.target.mk
+/libdart_lib_withcore.target.mk
+/libdart.target.mk
+/libdart_vm.target.mk
+/libdart_withcore.target.mk
+/libdouble_conversion.target.mk
+/libjscre.target.mk
+/Makefile
+/process_test.target.mk
+/runtime
+/run_vm_tests.target.mk
+/test_extension.target.mk
+/out
+/xcodebuild
+/Debug
+/DebugARM
+/DebugIA32
+/DebugSIMARM
+/DebugX64
+/Release
+/ReleaseARM
+/ReleaseIA32
+/ReleaseSIMARM
+/ReleaseX64