Implement C++11 [dcl.align]p1 and C11 6.7.5/2 rules for alignas and _Alignas.


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@173779 91177308-0d34-0410-b5e6-96231b3b80d8
Remove empty lines before "}".

Those empty lines waste vertical whitespace and almost never
increase readability.

Before:
void f() {
  DoSomething();

}

After:
void f() {
  DoSomething();
}

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@173785 91177308-0d34-0410-b5e6-96231b3b80d8