Fixed a warning with gcc 4.2 when the Xcode project falls back to the system compiler when clang isn't around to do the compiling.
Fixed a warning with gcc 4.2 when the Xcode project falls back to the
system compiler when clang isn't around to do the compiling.



git-svn-id: b33bab8abb5b18c12ee100cd7761ab452d00b2b0@128006 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb