[HarfBuzz] harfbuzz: Changes to 'typename-outside-template'

[Behdad Esfahbod]

New branch 'typename-outside-template' available with the following commits:
commit c55f0e2924b694518953cc2a494c8a866d3ff5f6
Author: Behdad Esfahbod <behdad at behdad.org>
Date:   Sat Nov 3 13:33:42 2018 -0400

    Revert "[ci] Disable llvm-gcc"
    
    This reverts commit e1b8e933f099efae3c3e1f5706be19120b44de20.
    
    Let's see if cbfd8597e050f0123e279b692abf7270898a05fb fixed this.

commit 11a03698d3226dec1a40a53544ab65f1242af622
Author: Behdad Esfahbod <behdad at behdad.org>
Date:   Sat Nov 3 13:33:04 2018 -0400

    Try fixing "typename outside template" warning / error
    
    Fixes https://github.com/harfbuzz/harfbuzz/issues/1341

commit c560ca92512c0283e826c059431273ffecf5d993
Author: Ebrahim Byagowi <ebrahim at gnu.org>
Date:   Sat Nov 3 13:03:36 2018 +0330

    [fuzz] A new testcase