Kapt3: Initial implementation of JCTreeConverter

plugins/kapt3/testData/converter/dataClass.kt

@@ -0,0 +1 @@
+data class User(val firstName: String, val secondName: String, val age: Int)

plugins/kapt3/testData/converter/dataClass.txt

@@ -0,0 +1,49 @@
+public final synchronized class User {
+    private final java.lang.String firstName;
+    private final java.lang.String secondName;
+    private final int age;
+
+    public final java.lang.String getFirstName() {
+        return null;
+    }
+
+    public final java.lang.String getSecondName() {
+        return null;
+    }
+
+    public final int getAge() {
+        return 0;
+    }
+
+    public void User(java.lang.String firstName, java.lang.String secondName, int age) {
+        return null;
+    }
+
+    public final java.lang.String component1() {
+        return null;
+    }
+
+    public final java.lang.String component2() {
+        return null;
+    }
+
+    public final int component3() {
+        return 0;
+    }
+
+    public final User copy(java.lang.String firstName, java.lang.String secondName, int age) {
+        return null;
+    }
+
+    public java.lang.String toString() {
+        return null;
+    }
+
+    public int hashCode() {
+        return 0;
+    }
+
+    public boolean equals(java.lang.Object p0) {
+        return false;
+    }
+}