Java to Kotlin converter: keep more than one blank line from original code

j2k/tests/testData/ast/formatting/nonStaticMembers.kt

@@ -3,6 +3,7 @@ class F {
     fun f1() {
     }
 
+
     fun f2() {
     }
     var i: Int? = 0

j2k/tests/testData/ast/formatting/nonStaticMembersWithComments.kt

@@ -7,6 +7,7 @@ class F {
     fun f1() {
     }
 
+
     //c3
 
 

j2k/tests/testData/ast/formatting/staticAndNonStaticMembersWithComments.kt

@@ -1,5 +1,6 @@
 class F {
 
+
     //c3
 
 

j2k/tests/testData/ast/formatting/staticMembersWithComments.kt

@@ -8,6 +8,7 @@ class F {
         fun f1() {
         }
 
+
         //c3