Fix: <rdar://problem/7021553> clang -fsyntax-only crashes (in ParseDeclarationSpecifiers ... from ParseObjCTypeName)
Fix: <rdar://problem/7021553> clang -fsyntax-only crashes (in ParseDeclarationSpecifiers ... from ParseObjCTypeName)

Another case where we should use SmallVector::data() instead of taking the
address of element 0 of a SmallVector when the SmallVector has no elements.


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@74556 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang