Fix some guidelines violations and typos

[frootloops]

Copy of #202 but it works.

Output of utils/build-script -RT:

********************
Testing Time: 1453.92s
********************
Failing Tests (1):
    Swift :: IDE/crashers/026-swift-mangle-mangler-mangletype.swift

  Expected Passes    : 7660
  Expected Failures  : 8
  Unsupported Tests  : 38
  Unexpected Failures: 1
*** Failed while running tests for swift (check-swift-all-macosx-x86_64)
utils/build-script: command terminated with a non-zero exit status 1, aborting

I expect IDE/crashers/026-swift-mangle-mangler-mangletype.swift must fail?

[gribozavr]

Tested on Ubuntu 14.04.