The jfx `.jcheck/conf` file is configured to check the same set of files as the old HG jcheck, namely files with the following extensions:

.java, .c, .h, .cpp, and .hpp

The Skara git jcheck alows us to evolve the rules for white space checking compatibly.

I propose to add the following additional file extensions to the list of source files that need to be kept whitespace-clean:

.cc, .css, .frag, .fxml, .g4, .gradle, .groovy, .hlsl, .jsl, .m, .metal, .mm, .stg, .vert

Many of these are optionally checked by the tools/scripts/checkWhiteSpace tool, which has an extended mode (-E) that adds most of the above. However, since it isn't the default, which was chosen to match jcheck, whitespace issues have crept in.

We should fix these error, and at the same time, modify the .jcheck/conf script so they don't sneak back in.

I ran the tool on all files in the repo, and found the following files that need to be fixed:

build.gradle :trailingWhitespace:
buildSrc/android.gradle :trailingWhitespace:
buildSrc/win.gradle :tabs:
modules/javafx.graphics/src/jslc/antlr/com/sun/scenario/effect/compiler/JSL.g4 :tabs:
modules/javafx.graphics/src/jslc/resources/com/sun/scenario/effect/compiler/backend/prism/PrismGlue.stg :trailingWhitespace:
modules/javafx.graphics/src/jslc/resources/com/sun/scenario/effect/compiler/backend/sw/java/JSWGlue.stg :trailingWhitespace:
modules/javafx.graphics/src/jslc/resources/com/sun/scenario/effect/compiler/backend/sw/me/MEJavaGlue.stg :trailingWhitespace:
modules/javafx.graphics/src/jslc/resources/com/sun/scenario/effect/compiler/backend/sw/sse/SSEJavaGlue.stg :trailingWhitespace:
modules/javafx.graphics/src/main/native-glass/mac/GlassViewDelegate.m :trailingWhitespace:
modules/javafx.graphics/src/main/resources/com/sun/prism/es2/glsl/diffuse_texture.frag :trailingWhitespace:
modules/javafx.graphics/src/main/resources/com/sun/prism/es2/glsl/main.vert :trailingWhitespace:
modules/javafx.web/src/main/native/Source/JavaScriptCore/runtime/BundlePath.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WTF/wtf/BlockObjCExceptions.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WTF/wtf/cocoa/FileSystemCocoa.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WTF/wtf/cocoa/MainThreadCocoa.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WTF/wtf/cocoa/MemoryPressureHandlerCocoa.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WTF/wtf/cocoa/NSURLExtras.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WTF/wtf/cocoa/URLCocoa.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/Modules/mediacontrols/mediaControlsApple.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/Modules/mediacontrols/mediaControlsBase.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/Modules/mediacontrols/mediaControlsiOS.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/Modules/modern-media-controls/controls/compact-activity-indicator.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/Modules/modern-media-controls/controls/compact-media-controls.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/Modules/modern-media-controls/controls/media-controls.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/Modules/modern-media-controls/controls/slider.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/Modules/plugins/QuickTimePluginReplacement.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/Modules/plugins/QuickTimePluginReplacement.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/css/html.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/css/mediaControls.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/css/mediaControlsiOS.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/css/svg.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/css/themeWin.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/css/themeWinQuirks.css :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/dom/DataTransferMac.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/platform/graphics/cv/ImageTransferSessionVT.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/platform/graphics/cv/TextureCacheCV.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/rendering/RenderThemeIOS.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/WebCore/rendering/RenderThemeMac.mm :trailingWhitespace:
modules/javafx.web/src/main/native/Source/bmalloc/bmalloc/ProcessCheck.mm :trailingWhitespace: