Fix kapt tests (Kotlin version updated to 1.3)

plugins/kapt3/kapt3-compiler/testData/converter/comments.txt

@@ -56,13 +56,13 @@ public final class Test {
      * prop.
      */
     @org.jetbrains.annotations.NotNull()
-    private final java.lang.String prop = "";
+    public final java.lang.String prop = "";
 
     /**
      * prop2.
      */
     @org.jetbrains.annotations.NotNull()
-    private final java.lang.String prop2 = "";
+    private final java.lang.String prop2 = null;
 
     /**
      * method().
@@ -83,11 +83,6 @@ public final class Test {
     java.lang.String a) {
     }
 
-    @org.jetbrains.annotations.NotNull()
-    public final java.lang.String getProp() {
-        return null;
-    }
-
     @Anno()
     public static void prop2$annotations() {
     }