servo: Merge #12373 - Implements name method for FilerReader event from trait Runnable (from cynicaldevil:impl-runnable); r=KiChjang

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Source-Repo: https://github.com/servo/servo
Source-Revision: 287969f7bb3df62321ba4b7d977571d452d1afd6

UltraBlame original commit: ecde55b759e76a71bc976953b6dba60667a086c2

Author: marco-c

servo/components/script/dom/filereader.rs

@@ -2672,6 +2672,23 @@ for
 FileReaderEvent
 {
 fn
+name
+(
+&
+self
+)
+-
+>
+&
+'
+static
+str
+{
+"
+FileReaderEvent
+"
+}
+fn
 handler
 (
 self