KT-2701 Prevent redeclaration in multi-declaration

#KT-2701 Fixed

compiler/testData/diagnostics/tests/shadowing/ShadowMultiDeclarationWithFunParameter.kt

@@ -0,0 +1,14 @@
+class A {
+    fun component1() = 42
+    fun component2() = 42
+}
+
+fun foo(a: A, c: Int) {
+    val (<!NAME_SHADOWING!>a<!>, b) = a
+    val arr = Array(2) { A() }
+    for ((<!NAME_SHADOWING!>c<!>, d) in arr)  {
+        
+    }
+
+    val <!UNUSED_VARIABLE!>e<!> = a.toString() + b + c
+}