[K2]: Missing error and miscompilation in destructuring declaration delegation

In convertDestructingDeclaration, property delegates are mistakenly
treated as valid expressions for destructuring, but they should be
ignored.

#KT-65021 Fixed

compiler/fir/raw-fir/light-tree2fir/src/org/jetbrains/kotlin/fir/lightTree/converter/LightTreeRawFirDeclarationBuilder.kt

@@ -1475,6 +1475,8 @@ class LightTreeRawFirDeclarationBuilder(
                 MODIFIER_LIST -> annotations += convertAnnotationList(it)
                 VAR_KEYWORD -> isVar = true
                 DESTRUCTURING_DECLARATION_ENTRY -> entries += convertDestructingDeclarationEntry(it)
+                // Property delegates should be ignored as they aren't a valid initializers
+                PROPERTY_DELEGATE -> {}
                 else -> if (it.isExpression()) firExpression =
                     expressionConverter.getAsFirExpression(it, "Initializer required for destructuring declaration")
             }