[clang-format] Parse restrict as a pointer qualifier

[arichardson]

Summary

Before: void f() { MACRO(A * restrict a); }
After: void f() { MACRO(A *restrict a); }

Also check that the restrict and restrict__ aliases are handled.

[JakeMerdichAMD]

LGTM, assuming tests pass (automated checks failed to resolve your patch since you based it off of your other one). Looks like enabling C99 should have no other effects, right?

[arichardson]

In D86710#2242197, @JakeMerdichAMD wrote:

LGTM, assuming tests pass (automated checks failed to resolve your patch since you based it off of your other one). Looks like enabling C99 should have no other effects, right?

Tests are passing locally. Looking at TokenKinds.def it seems the only thing setting C99 enables is restrict and inline (but we already get that via C++).