Perform clean code of ui/org.eclipse.pde.spy.context

Author: eclipse-pde-bot

ui/org.eclipse.pde.spy.context/src/org/eclipse/pde/internal/spy/context/ContextDataFilter.java

@@ -111,11 +111,10 @@ public boolean matchText(String text) {
 	 */
 	private Collection<String> computeValues(IEclipseContext ctx) {
 		Collection<String> result = new ArrayList<>();
-		if (ctx instanceof EclipseContext) {
+		if (ctx instanceof EclipseContext currentContext) {
 			// Search for all strings in this context (values and context
 			// function)
 
-			EclipseContext currentContext = (EclipseContext) ctx;
 			extractStringsFromMap(currentContext.localData(), result);
 
 			// Search also in context functions