[FIR] Support of REDECLARATION for local val/var, ^KT-54405 Fixed

compiler/testData/diagnostics/tests/declarationChecks/RedeclarationsInMultiDecl.fir.kt

@@ -4,11 +4,11 @@ class A {
 }
 
 fun a() {
-    val (a, a) = A()
-    val (x, y) = A();
-    val b = 1
+    val (<!REDECLARATION!>a<!>, <!REDECLARATION!>a<!>) = A()
+    val (x, <!REDECLARATION!>y<!>) = A();
+    val <!REDECLARATION!>b<!> = 1
     use(b)
-    val (b, y) = A();
+    val (<!REDECLARATION!>b<!>, <!REDECLARATION!>y<!>) = A();
 }
 
 

compiler/testData/diagnostics/tests/declarationChecks/destructuringDeclarations/RedeclarationInForLoop.fir.kt

@@ -8,7 +8,7 @@ class C {
 }
 
 fun test() {
-    for ((x, x) in C()) {
+    for ((<!REDECLARATION!>x<!>, <!REDECLARATION!>x<!>) in C()) {
 
     }
 }

compiler/testData/diagnostics/tests/declarationChecks/destructuringDeclarations/underscore.fir.kt

@@ -36,11 +36,11 @@ fun test() {
     foo(x, <!UNDERSCORE_USAGE_WITHOUT_BACKTICKS, UNRESOLVED_REFERENCE!>_<!>)
     foo(<!UNDERSCORE_USAGE_WITHOUT_BACKTICKS, UNRESOLVED_REFERENCE!>_<!>, y)
 
-    val (`_`, z) = A()
+    val (<!REDECLARATION!>`_`<!>, z) = A()
 
     foo(<!UNDERSCORE_USAGE_WITHOUT_BACKTICKS!>_<!>, z)
 
-    val (_, `_`) = A()
+    val (_, <!REDECLARATION!>`_`<!>) = A()
 
     foo(<!ARGUMENT_TYPE_MISMATCH, UNDERSCORE_USAGE_WITHOUT_BACKTICKS!>_<!>, y)