Upstreaming the BridgeOS device support and the 
LC_BUILD_VERSION load command handling - this
commit is a combination of patches by Adrian
Prantl and myself.  llvm::Triple::BridgeOS 
isn't defined yet, so all references to that
are currently commented out.  

Also update Xcode project file to build the 
NativePDB etc plugins.

<rdar://problem/43353615> 

llvm-svn: 344209
diff --git a/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderMacOS.cpp b/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderMacOS.cpp
index 4d5f6cb..65a3554 100644
--- a/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderMacOS.cpp
+++ b/lldb/source/Plugins/DynamicLoader/MacOSX-DYLD/DynamicLoaderMacOS.cpp
@@ -55,6 +55,7 @@
       case llvm::Triple::IOS:
       case llvm::Triple::TvOS:
       case llvm::Triple::WatchOS:
+      // NEED_BRIDGEOS_TRIPLE case llvm::Triple::BridgeOS:
         create = triple_ref.getVendor() == llvm::Triple::Apple;
         break;
       default: