[Bug 280728] www/webkit2-gtk3: fix build with clang 19

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280728

--- Comment #4 from commit-hook@FreeBSD.org ---
A commit in branch 2024Q3 references this bug:

URL:
https://cgit.FreeBSD.org/ports/commit/?id=94cfb4eb0e3479f0a905b4261e69845a6ab6534f

commit 94cfb4eb0e3479f0a905b4261e69845a6ab6534f
Author:     Dimitry Andric <dim@FreeBSD.org>
AuthorDate: 2024-08-10 11:50:00 +0000
Commit:     Dimitry Andric <dim@FreeBSD.org>
CommitDate: 2024-08-12 19:43:36 +0000

    www/webkit2-gtk3: fix build with clang 19

    Clang 19 now implements CWG 96 [1], which requires a template argument
    list after a 'template' keyword, resulting in errors similar to:

       
/wrkdirs/usr/ports/www/webkit2-gtk3/work/webkitgtk-2.34.6/Source/JavaScriptCore/assembler/AbstractMacroAssembler.h:974:65:
error: a template argument list is expected after a name prefixed by the
template keyword [-Wmissing-template-arg-list-after-template-kw]
          974 |         AssemblerType::repatchCompact(dataLabelCompact.template
dataLocation(), value);
              |                                                                
^

    In these cases, appending "<>" is enough to satisfy the constraint.
    Upstream has committed a fix to their main branch [2], but since some
    code has moved around, and other functions have been removed, it does
    not apply cleanly to 2.34.6. Therefore, apply only the necessary fixes
    manually for now.

    [1] https://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#96
    [2] https://github.com/WebKit/WebKit/commit/62b6e2db547e

    PR:             280728
    Approved by:    fluffy (maintainer)
    MFH:            2024Q3

    (cherry picked from commit 743cdc3096083c022157d3da0291a878f1f8b58b)

 ...ptCore_assembler_AbstractMacroAssembler.h (new) | 11 +++++
 ...h-Source_JavaScriptCore_llint_LLIntData.h (new) | 56 ++++++++++++++++++++++
 ...ch-Source_JavaScriptCore_runtime_JSCast.h (new) | 20 ++++++++
 3 files changed, 87 insertions(+)

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