8255488: Re-enable some problem listed tests

Reviewed-by: psadhukhan

Author: mrserb

test/jdk/ProblemList.txt

@@ -775,14 +775,7 @@ javax/swing/JInternalFrame/Test6325652.java 8224977 macosx-all
 javax/swing/JInternalFrame/8146321/JInternalFrameIconTest.java 8225045 linux-all
 javax/swing/JPopupMenu/4870644/bug4870644.java 8194130 macosx-all,linux-all
 javax/swing/JFileChooser/6868611/bug6868611.java 7059834 windows-all
-javax/swing/SwingWorker/6493680/bug6493680.java 8198410 windows-all
 javax/swing/PopupFactory/6276087/NonOpaquePopupMenuTest.java 8065099,8208565 macosx-all,linux-all
-javax/swing/SwingWorker/6432565/bug6432565.java 8199077 generic-all
-javax/swing/SwingWorker/6880336/NestedWorkers.java 8199049 windows-all
-javax/swing/text/DefaultCaret/6938583/bug6938583.java 8199058 generic-all
-javax/swing/text/html/parser/Parser/HtmlCommentTagParseTest/HtmlCommentTagParseTest.java 8199073 generic-all
-javax/swing/text/StyledEditorKit/8016833/bug8016833.java 8199055 generic-all
-javax/swing/tree/DefaultTreeCellRenderer/7142955/bug7142955.java 8199076 generic-all
 javax/swing/UIDefaults/6302464/bug6302464.java 8199079 macosx-all
 javax/swing/PopupFactory/8048506/bug8048506.java 8202660 windows-all
 javax/swing/JPopupMenu/8075063/ContextMenuScrollTest.java 202880 linux-all