LibWeb: Crash when there is an infinite value for width or height

[aplefull]

Reduced example:

<div style="width: calc(tan(90deg) * 1px)"></div>

Stack trace:

VERIFICATION FAILED: !width.might_be_saturated() at /home/aplefull/repos/serenity/Userland/Libraries/LibWeb/Layout/LayoutState.cpp:521
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-ak.so.0(ak_verification_failed+0xc1) [0x7f3456831bd1]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-web.so.0 Web::Layout::LayoutState::UsedValues::set_content_width(Web::CSSPixels) 0x1f) [0x7f3457e0d81f]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::compute_width(Web::Layout::Box const&, Web::Layout::AvailableSpace const&, Web::Layout::LayoutMode) 0x657) [0x7f3457dd2467]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_box(Web::Layout::Box const&, Web::Layout::BlockContainer const&, Web::Layout::LayoutMode, Web::CSSPixels&, Web::Layout::AvailableSpace const&) 0x2a4) [0x7f3457dd4c74]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_children(Web::Layout::BlockContainer const&, Web::Layout::LayoutMode, Web::Layout::AvailableSpace const&) 0x7f) [0x7f3457dd598f]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_box(Web::Layout::Box const&, Web::Layout::BlockContainer const&, Web::Layout::LayoutMode, Web::CSSPixels&, Web::Layout::AvailableSpace const&) 0x77f) [0x7f3457dd514f]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_children(Web::Layout::BlockContainer const&, Web::Layout::LayoutMode, Web::Layout::AvailableSpace const&) 0x7f) [0x7f3457dd598f]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::run(Web::Layout::Box const&, Web::Layout::LayoutMode, Web::Layout::AvailableSpace const&) 0x3d) [0x7f3457dd5d4d]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_box(Web::Layout::Box const&, Web::Layout::BlockContainer const&, Web::Layout::LayoutMode, Web::CSSPixels&, Web::Layout::AvailableSpace const&) 0x33d) [0x7f3457dd4d0d]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-web.so.0 Web::Layout::BlockFormattingContext::layout_block_level_children(Web::Layout::BlockContainer const&, Web::Layout::LayoutMode, Web::Layout::AvailableSpace const&) 0x7f) [0x7f3457dd598f]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-web.so.0 Web::DOM::Document::update_layout() 0x268) [0x7f3457ae2bd8]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-web.so.0(+0x88e443) [0x7f3457c13443]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-web.so.0(+0xb44289) [0x7f3457ec9289]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-core.so.0 Core::Timer::timer_event(Core::TimerEvent&) 0xb2) [0x7f3456929772]
/home/aplefull/repos/serenity/Build/lagom/lib/liblagom-core.so.0 Core::EventReceiver::dispatch_event(Core::Event&, Core::EventReceiver*) 0x4d) [0x7f345690e51d]
/home/aplefull/repos/serenity/Build/lagom/libexec/WebContent(+0x11badd) [0x55568db94add]