unittest: Ignore _Float128 types in ffi

When building with certain GCC versions, a _Float128 type is present
when setting up the ffi for unit tests.

    ./test/unit/helpers.lua:256: declaration specifier expected near '_Float128' at line 396
    /usr/bin/luajit: /usr/share/lua/5.1/busted/runner.lua:99: attempt to concatenate local 'message' (a table value)
    stack traceback:
    	/usr/share/lua/5.1/busted/runner.lua:99: in function 'fn'
    	/usr/share/lua/5.1/mediator.lua:103: in function 'publish'
    	/usr/share/lua/5.1/busted/modules/helper_loader.lua:21: in function 'helperLoader'
    	/usr/share/lua/5.1/busted/runner.lua:147: in function </usr/share/lua/5.1/busted/runner.lua:11>
    	/usr/bin/busted:3: in main chunk
    	[C]: at 0x004044a0

    CMake Error at /<<PKGBUILDDIR>>/cmake/RunTests.cmake:53 (message):
      Running unit tests failed with error: 1.

Since this is being pulled in by a dependency, not directly used by
nvim, just ignore the type.

Closes #7423

1 files changed, 1 insertions, 0 deletions

diff --git a/test/unit/helpers.lua b/test/unit/helpers.lua
index 4b9f185156..ac5e394a54 100644
--- a/test/unit/helpers.lua
+++ b/test/unit/helpers.lua
@@ -138,6 +138,7 @@ local function filter_complex_blocks(body)
   for line in body:gmatch("[^\r\n]+") do
     if not (string.find(line, "(^)", 1, true) ~= nil
             or string.find(line, "_ISwupper", 1, true)
+            or string.find(line, "_Float128")
             or string.find(line, "msgpack_zone_push_finalizer")
             or string.find(line, "msgpack_unpacker_reserve_buffer")
             or string.find(line, "UUID_NULL")  -- static const uuid_t UUID_NULL = {...}