diff -r 88502b1cf76f -r 7799a51dbe30 src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/CRTable.java
--- a/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/CRTable.java	Mon Sep 09 11:43:16 2019 -0400
+++ b/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/CRTable.java	Wed Nov 27 09:00:01 2019 +0100
@@ -473,7 +473,7 @@
         public void visitTypeTest(JCInstanceOf tree) {
             SourceRange sr = new SourceRange(startPos(tree), endPos(tree));
             sr.mergeWith(csp(tree.expr));
-            sr.mergeWith(csp(tree.clazz));
+            sr.mergeWith(csp(tree.pattern));
             result = sr;
         }