Codegen for "componentN" functions for data classes

compiler/testData/codegen/dataClasses/arrayParams.kt

@@ -0,0 +1,10 @@
+data class A(val x: Array<Int>, val y: IntArray)
+
+fun foo(x: Array<Int>, y: IntArray) = A(x, y)
+
+fun box(): String {
+    val a = Array<Int>(0, {0})
+    val b = IntArray(0)
+    val (x, y) = foo(a, b)
+    return if (a == x && b == y) "OK" else "Fail"
+}

compiler/testData/codegen/dataClasses/changingVarParam.kt

@@ -0,0 +1,8 @@
+data class A(var string: String)
+
+fun box(): String {
+    val a = A("Fail")
+    a.string = "OK"
+    val (result) = a
+    return result
+}

compiler/testData/codegen/dataClasses/genericParam.kt

@@ -0,0 +1,12 @@
+data class A<T>(val x: T)
+
+fun box(): String {
+    val a = A(42)
+    if (a.component1() != 42) return "Fail a: ${a.component1()}"
+    
+    val b = A(239.toLong())
+    if (b.component1() != 239.toLong()) return "Fail b: ${b.component1()}"
+    
+    val c = A("OK")
+    return c.component1()
+}

compiler/testData/codegen/dataClasses/mixedParams.kt

@@ -0,0 +1,8 @@
+data class A(var x: Int, y: Int, val z: Int)
+
+fun box(): String {
+    val a = A(1, 2, 3)
+    if (a.component1() != 1) return "Fail: ${a.component1()}"
+    if (a.component2() != 3) return "Fail: ${a.component2()}"
+    return "OK"
+}

compiler/testData/codegen/dataClasses/multiDeclaration.kt

@@ -0,0 +1,7 @@
+data class A(val x: Int, val y: Any?, val z: String)
+
+fun box(): String {
+    val a = A(42, null, "OK")
+    val (x, y, z) = a
+    return if (x == 42 && y == null) z else "Fail"
+}

compiler/testData/codegen/dataClasses/multiDeclarationFor.kt

@@ -0,0 +1,17 @@
+data class A(val x: Int, val y: String)
+
+fun box(): String {
+    val arr = Array<A>(5) {
+        i -> A(i, i.toString())
+    }
+    
+    var sum = 0
+    var str = ""
+    
+    for ((x, y) in arr) {
+        sum += x
+        str += y
+    }
+    
+    return if (sum == 0+1+2+3+4 && str == "01234") "OK" else "Fail ${sum} ${str}"
+}

compiler/testData/codegen/dataClasses/overriddenProperty.kt

@@ -0,0 +1,11 @@
+open data class A(open val x: String)
+
+class B : A("OK") {
+    override val x: String = "Fail"
+}
+
+fun foo(a: A) = a.component1()
+
+fun box(): String {
+    return foo(B())
+}

compiler/testData/codegen/dataClasses/twoValParams.kt

@@ -0,0 +1,6 @@
+data class A(val x: Int, val y: String)
+
+fun box(): String {
+    val a = A(42, "OK")
+    return if (a.component1() == 42) a.component2() else a.component1().toString()
+}

compiler/testData/codegen/dataClasses/twoVarParams.kt

@@ -0,0 +1,9 @@
+data class A(var x: Int, var y: String)
+
+fun box(): String {
+    val a = A(21, "K")
+    if (a.component1() != 21 || a.component2() != "K") return "Fail"
+    a.x *= 2
+    a.y = "O" + a.component2()
+    return if (a.component1() == 42) a.component2() else a.component1().toString()
+}

compiler/testData/codegen/dataClasses/unitComponent.kt

@@ -0,0 +1,6 @@
+data class A(val x: Unit)
+
+fun box(): String {
+    val a = A(#())
+    return if (a.component1() is Unit) "OK" else "Fail ${a.component1()}"
+}