Removed bad syntax adding defaults to interface attributes + any instead of dictionaries as attribute types (#11630)

* Removed bad syntax adding defaults to interface attributes

* Use any as type for attributes that have dictionary type

* Removed nullable from dictionary members in AnimationTriggerOptions

Author: ydaniv

web-animations-2/Overview.bs

@@ -3610,10 +3610,10 @@ interface AnimationTrigger {
   constructor(optional AnimationTriggerOptions options = {});
   attribute AnimationTimeline timeline;
   attribute AnimationTriggerType type;
-  attribute (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString) rangeStart = "normal";
-  attribute (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString) rangeEnd = "normal";
-  attribute (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString) exitRangeStart = "auto";
-  attribute (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString) exitRangeEnd = "auto";
+  attribute any rangeStart;
+  attribute any rangeEnd;
+  attribute any exitRangeStart;
+  attribute any exitRangeEnd;
 };
 </pre>
 
@@ -3695,10 +3695,10 @@ interface AnimationTrigger {
 dictionary AnimationTriggerOptions {
   AnimationTimeline? timeline;
   AnimationTriggerType? type = "once";
-  (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString)? rangeStart = "normal";
-  (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString)? rangeEnd = "normal";
-  (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString)? exitRangeStart = "auto";
-  (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString)? exitRangeEnd = "auto";
+  (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString) rangeStart = "normal";
+  (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString) rangeEnd = "normal";
+  (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString) exitRangeStart = "auto";
+  (TimelineRangeOffset or CSSNumericValue or CSSKeywordValue or DOMString) exitRangeEnd = "auto";
 };
 </pre>