[llvm] r304083 - Added braces to address gcc warning: suggest explicit braces to avoid ambiguous 'else' [-Wdangling-else]. NFC.

[Joerg Sonnenberger via llvm-commits]

On Sat, May 27, 2017 at 10:30:54PM -0700, Craig Topper via llvm-commits wrote:
> EXPECT_STREQ should already be using this as far as I can tell.

GTEST_ASSERT_ should get a do { ... } while (0) wrapper. That's much
better than the switch statement it is currently trying to use.

Joerg