IDEA-42378 Live template expansion: existing identifier is converted to lower case

java/java-tests/testData/codeInsight/template/ClassNameDotInTemplate-out.java

@@ -0,0 +1,8 @@
+import java.io.File;
+
+class Foo {
+    {
+      File file = new File("some.txt");
+        System.out.println("file = " + File.<caret>);
+    }
+}