Fix TestWebKitAPI build when including WKFeature.h. Seen in these EWS builds: <https://ews-build.webkit.org/#/builders/43/builds/40334> <https://ews-build.webkit.org/#/builders/85/builds/7733> ``` In file included from /Volumes/Data/worker/macOS-BigSur-Release-Build-EWS/build/Tools/TestWebKitAPI/mac/SyntheticBackingScaleFactorWindow.m:26: In file included from /Volumes/Data/worker/macOS-BigSur-Release-Build-EWS/build/Tools/TestWebKitAPI/config.h:69: In file included from /Volumes/Data/worker/macOS-BigSur-Release-Build-EWS/build/WebKitBuild/Release/WebKit.framework/PrivateHeaders/WebKit2_C.h:40: /Volumes/Data/worker/macOS-BigSur-Release-Build-EWS/build/WebKitBuild/Release/WebKit.framework/PrivateHeaders/WKFeature.h:34:38: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes] WK_EXPORT WKTypeID WKFeatureGetTypeID(); ^ void 1 error generated. ```
<rdar://problem/105373344>
Pull request: https://github.com/WebKit/WebKit/pull/10008
Committed 260176@main (be80c071ab73): <https://commits.webkit.org/260176@main> Reviewed commits have been landed. Closing PR #10008 and removing active labels.