[tests] prepares Java tests for the language level raise

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/exceptions/UnboundExceptions.java

@@ -1,13 +1,13 @@
 class Test {
 
     interface F<T extends Throwable> {
-        void _() throws T;
+        void m() throws T;
     }
 
     void m1() { }
     void m2() throws ClassNotFoundException { }
     void m3() throws Exception { }
-    
+
     <K extends Throwable> void foo1(F<K> f) throws K { }
     <K extends ClassNotFoundException> void foo2(F<K> f) throws K { }