IR text tests: Stable blank lines between declarations in class

Rework rendering of kt-like dump and signatures dump in order to avoid
unstable blank line between declarations of the same level:
1. No blank line for the first declaration inside the member scope of
the class.
2. Always a single blank line between each two subsequent declarations
inside the member scope of the class.

compiler/tests-gen/org/jetbrains/kotlin/klib/KlibIrTextTestCaseGenerated.java

@@ -122,6 +122,11 @@ public class KlibIrTextTestCaseGenerated extends AbstractKlibIrTextTestCase {
             runTest("compiler/testData/ir/irText/classes/enumClassModality.kt");
         }
 
+        @TestMetadata("enumEntries.kt")
+        public void testEnumEntries() throws Exception {
+            runTest("compiler/testData/ir/irText/classes/enumEntries.kt");
+        }
+
         @TestMetadata("enumWithMultipleCtors.kt")
         public void testEnumWithMultipleCtors() throws Exception {
             runTest("compiler/testData/ir/irText/classes/enumWithMultipleCtors.kt");