Fixed KT-5315 J2K: Generate local var when parameter is being assigned

#KT-5315 Fixed

j2k/tests/testData/ast/constructors/fieldsInitializedFromParams3.kt

@@ -2,6 +2,7 @@ class C(p: Int) {
     private val p: Int
 
     {
+        var p = p
         this.p = p
         System.out.println(p++)
         System.out.println(p)

j2k/tests/testData/ast/constructors/parameterModification.java

@@ -0,0 +1,28 @@
+//file
+class C {
+    private val field;
+
+    C(int arg1, int arg2, int arg3) {
+        arg1++;
+        System.out.print(arg1 + arg2);
+        field = arg3;
+        arg3++;
+    }
+
+    C(int arg1, int arg2) {
+        this(arg1, arg2, 0);
+        arg2++;
+    }
+
+    C(int arg1) {
+        this(arg1, 0, 0);
+    }
+}
+
+public class User {
+    public static void main() {
+        C c1 = new C(100, 100, 100);
+        C c2 = new C(100, 100);
+        C c3 = new C(100);
+    }
+}

j2k/tests/testData/ast/constructors/parameterModification.kt

@@ -0,0 +1,37 @@
+class C(arg1: Int, arg2: Int, arg3: Int) {
+    private val field: `val`
+
+    {
+        var arg1 = arg1
+        var arg3 = arg3
+        arg1++
+        System.out.print(arg1 + arg2)
+        field = arg3
+        arg3++
+    }
+
+    class object {
+
+        fun create(arg1: Int, arg2: Int): C {
+            var arg2 = arg2
+            val __ = C(arg1, arg2, 0)
+            arg2++
+            return __
+        }
+
+        fun create(arg1: Int): C {
+            val __ = C(arg1, 0, 0)
+            return __
+        }
+    }
+}
+
+public class User() {
+    class object {
+        public fun main() {
+            val c1 = C(100, 100, 100)
+            val c2 = C.create(100, 100)
+            val c3 = C.create(100)
+        }
+    }
+}

j2k/tests/testData/ast/function/parameterModification.java

@@ -0,0 +1,6 @@
+//method
+int foo(int p1, int p2, int p3) {
+    p1++;
+    if (p2 > 0) p3 = 0;
+    return p1 + p2 + p3;
+}

j2k/tests/testData/ast/function/parameterModification.kt

@@ -0,0 +1,7 @@
+fun foo(p1: Int, p2: Int, p3: Int): Int {
+    var p1 = p1
+    var p3 = p3
+    p1++
+    if (p2 > 0) p3 = 0
+    return p1 + p2 + p3
+}

j2k/tests/testData/ast/function/varVararg.kt

@@ -2,6 +2,7 @@ package demo
 
 class Test() {
     fun test(vararg args: Any) {
+        var args = args
         args = array<Int>(1, 2, 3)
     }
 }

j2k/tests/testData/ast/function/writableParameter.java

@@ -1,9 +0,0 @@
-//file
-package demo;
-
-class Test {
-  int test(int i) {
-    i = 10;
-    return i + 20;
-  }
-}

j2k/tests/testData/ast/function/writableParameter.kt

@@ -1,8 +0,0 @@
-package demo
-
-class Test() {
-    fun test(i: Int): Int {
-        i = 10
-        return i + 20
-    }
-}