Updates version number to 0.4.186625738.20180222.

Significant changes:
- Fixed issue with BEP resolving file paths.
- Added workaround for LLDB latency between indexing dSYMs.
- Keeping dSYM generation restricted to minimal set needed.
- Added back -fdebug-prefix-map option for path remapping.
- Corrected declaration of plist key in dSYM bundles.
- Removed -fdebug-prefix-map option for path remapping.
- Converted codebase to Swift 4.

PiperOrigin-RevId: 186629093

src/XcodeConfig/TulsiVersion.xcconfig

diff --git a/src/XcodeConfig/TulsiVersion.xcconfig b/src/XcodeConfig/TulsiVersion.xcconfig
index a548fd9..6fedd74 100644
--- a/src/XcodeConfig/TulsiVersion.xcconfig
+++ b/src/XcodeConfig/TulsiVersion.xcconfig
@@ -8,8 +8,8 @@
 // Version number (recorded into the Info.plist)
 TULSI_VERSION_MAJOR = 0
 TULSI_VERSION_MINOR = $(GOOGLE_VERSION_BUILDNUMBER)
-TULSI_VERSION_FIXLEVEL = 185727384
-TULSI_VERSION_BUILDNUMBER = 20180214
+TULSI_VERSION_FIXLEVEL = 186625738
+TULSI_VERSION_BUILDNUMBER = 20180222
 
 TULSI_VERSION_COPYRIGHT = 2015-2018