Add TypeChecking=Unrestricted to SVGElements where applicable

Source/core/svg/SVGAnimationElement.cpp

Index: Source/core/svg/SVGAnimationElement.cpp
diff --git a/Source/core/svg/SVGAnimationElement.cpp b/Source/core/svg/SVGAnimationElement.cpp
index ea34b38e5da966ad1a6df438e3e5584d111a0697..f8f3848506f65055b550a3b359d0d4505435c5d6 100644
--- a/Source/core/svg/SVGAnimationElement.cpp
+++ b/Source/core/svg/SVGAnimationElement.cpp
@@ -272,8 +272,7 @@ void SVGAnimationElement::beginElement()
 
 void SVGAnimationElement::beginElementAt(float offset)
 {
-    if (!std::isfinite(offset))
-        return;
+    ASSERT(std::isfinite(offset));
     SMILTime elapsed = this->elapsed();
     addBeginTime(elapsed, elapsed + offset, SMILTimeWithOrigin::ScriptOrigin);
 }
@@ -285,8 +284,7 @@ void SVGAnimationElement::endElement()
 
 void SVGAnimationElement::endElementAt(float offset)
 {
-    if (!std::isfinite(offset))
-        return;
+    ASSERT(std::isfinite(offset));
     SMILTime elapsed = this->elapsed();
     addEndTime(elapsed, elapsed + offset, SMILTimeWithOrigin::ScriptOrigin);
 }