[Driver] Add an assert to Darwin::isTargetMacOS() for consistency.

llvm-svn: 239967

diff --git a/clang/lib/Driver/ToolChains.h b/clang/lib/Driver/ToolChains.h
index 0b7073f..74b093f 100644 (file)
--- a/clang/lib/Driver/ToolChains.h
+++ b/clang/lib/Driver/ToolChains.h
@@ -412,6 +412,7 @@ protected:
   }
 
   bool isTargetMacOS() const {
+    assert(TargetInitialized && "Target not initialized!");
     return TargetPlatform == MacOS;
   }