j2k: flatten test cases and testData directory structure

Move j2k/test/tests -> j2k/tests, j2k/test/testData -> j2k/testData

j2k/testData/fileOrElement/constructors/genericIdentifier.kt

@@ -0,0 +1,35 @@
+// ERROR: 'public fun <T> Identifier(name: T, isNullable: kotlin.Boolean): Identifier<T>' is already defined in root package
+// ERROR: 'public constructor Identifier<T>(name: T, myHasDollar: kotlin.Boolean)' is already defined in root package
+// ERROR: Cannot choose among the following candidates without completing type inference:  public fun <T> Identifier(name: T, isNullable: kotlin.Boolean): Identifier<T> defined in root package public constructor Identifier<T>(name: T, myHasDollar: kotlin.Boolean) defined in Identifier
+// ERROR: Cannot choose among the following candidates without completing type inference:  public fun <T> Identifier(name: T, isNullable: kotlin.Boolean): Identifier<T> defined in root package public constructor Identifier<T>(name: T, myHasDollar: kotlin.Boolean) defined in Identifier
+// ERROR: Cannot choose among the following candidates without completing type inference:  public fun <T> Identifier(name: T, isNullable: kotlin.Boolean): Identifier<T> defined in root package public constructor Identifier<T>(name: T, myHasDollar: kotlin.Boolean) defined in Identifier
+// ERROR: Overload resolution ambiguity:  public fun <T> Identifier(name: kotlin.String, isNullable: kotlin.Boolean): Identifier<kotlin.String> defined in root package public constructor Identifier<T>(name: kotlin.String, myHasDollar: kotlin.Boolean) defined in Identifier
+public fun <T> Identifier(name: T): Identifier<T> {
+    return Identifier(name, false)
+}
+
+public fun <T> Identifier(name: T, isNullable: Boolean): Identifier<T> {
+    val __ = Identifier(name, false)
+    __.myNullable = isNullable
+    return __
+}
+
+public fun <T> Identifier(name: T, hasDollar: Boolean, isNullable: Boolean): Identifier<T> {
+    val __ = Identifier(name, hasDollar)
+    __.myNullable = isNullable
+    return __
+}
+
+public class Identifier<T>(public val name: T, private val myHasDollar: Boolean) {
+    private var myNullable = true
+}
+
+public class User {
+    class object {
+        public fun main() {
+            val i1 = Identifier("name", false, true)
+            val i2 = Identifier<String>("name", false)
+            val i3 = Identifier("name")
+        }
+    }
+}