IDEA-149077 Default decompiler is chosen for several classes instead of Fernflower - tests

testData/obfuscated/a_.java

@@ -0,0 +1,8 @@
+class a_ extends RuntimeException {
+   private static final long serialVersionUID = -7454219131982518216L;
+   final bc a;
+
+   a_(bc var1) {
+      this.a = var1;
+   }
+}