Move CharacterLiteral, FloatingLiteral and UnaryExprOrTypeTraitExpr flags over into Stmt.

Apply the inheritance-padding trick to FloatingLiteral.
Shrinks CharacterLiteral from 32 to 24 bytes and the other two from 40 to 32 bytes (x86_64).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151500 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed