Initialize the non-trivial C union bits I added to RecordDeclBitfields in r365985
Initialize the non-trivial C union bits I added to RecordDeclBitfields
in r365985

These bits weren't being initialized in the RecordDecl's constructor,
which probably caused test/Modules/stress1.cpp to fail on a couple of
bots.

git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@365989 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang