Destructuring declaration initializer now cannot use extension componentX() on nullable #KT-7794 Fixed

compiler/testData/diagnostics/tests/dataClasses/extensionComponentsOnNullable.kt

@@ -0,0 +1,21 @@
+class Data<T>(val x: T, val y: T)
+
+operator fun <T> Data<T>.component1() = x
+
+operator fun <T> Data<T>.component2() = y
+
+fun foo(): Int {
+    val d: Data<Int>? = null
+    // An error must be here
+    val (x, y) = <!COMPONENT_FUNCTION_MISSING, COMPONENT_FUNCTION_MISSING!>d<!>
+    return x + y
+}
+
+data class NormalData<T>(val x: T, val y: T)
+
+fun bar(): Int {
+    val d: NormalData<Int>? = null
+    // An error must be here
+    val (x, y) = <!COMPONENT_FUNCTION_MISSING, COMPONENT_FUNCTION_MISSING!>d<!>
+    return <!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>x<!> <!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>+<!> <!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>y<!>
+}