clang-format breaks line within type for long variable name

[eschnett]

Bugzilla Link	28545
Version	unspecified
OS	All

Extended Description

clang-format 3.8.0 (OS X, MacPorts) produces this line break for a C++ file:

extern "C" char const
    *const OpenCL_source_OpenCLRunTime_test_attribute_opencl_unroll_hint;

I argue that the line break should not be within the type char const *const it should either be before the type (after extern "C") or after the type (just before the variable name).