clang-format thrift/compiler/generate/t_hack_generator.cc
clang-format thrift/compiler/generate/t_hack_generator.cc

Summary: Formatting Thrift codebase with clang-format in chunks.

Reviewed By: stevegury

Differential Revision: D7396073

fbshipit-source-id: fa7957d679ad9e1dde6f0a3b998accf8f07debe6

facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift