clang-format: Fix incorrect braced init identification.

Before:
  int foo(int i) {
    return fo1 {}
    (i);
  }
  int foo(int i) {
    return fo1 {}
    (i);
  }

After:
  int foo(int i) { return fo1{}(i); }
  int foo(int i) { return fo1{}(i); }

This fixes llvm.org/PR19812.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@209428 91177308-0d34-0410-b5e6-96231b3b80d8
clang-format: Fix braced list detection.

Before:
  static_assert(std::is_integral<int> {} + 0, "");
  int a = std::is_integral<int> {}
  + 0;

After:
  static_assert(std::is_integral<int>{} + 0, "");
  int a = std::is_integral<int>{} + 0;

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@209431 91177308-0d34-0410-b5e6-96231b3b80d8
Use stack protector strong by default on OpenBSD.

Use stack protector strong by default to match the base OS and ports/packages
compiler policy.

Patch by Brad Smith.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@209432 91177308-0d34-0410-b5e6-96231b3b80d8