[scripting] Make properties from destructing declarations available with reflection

compiler/frontend/src/org/jetbrains/kotlin/resolve/lazy/descriptors/AbstractLazyMemberScope.kt

@@ -212,6 +212,15 @@ protected constructor(
         }.toList()
     }
 
+    protected open fun collectDescriptorsFromDestructingDeclaration(
+        result: MutableSet<DeclarationDescriptor>,
+        declaration: KtDestructuringDeclaration,
+        nameFilter: (Name) -> Boolean,
+        location: LookupLocation,
+    ) {
+        // MultiDeclarations are not supported on global level by default
+    }
+
     protected fun computeDescriptorsFromDeclaredElements(
         kindFilter: DescriptorKindFilter,
         nameFilter: (Name) -> Boolean,
@@ -258,7 +267,7 @@ protected constructor(
                     }
                 }
                 is KtDestructuringDeclaration -> {
-                    // MultiDeclarations are not supported on global level
+                    collectDescriptorsFromDestructingDeclaration(result, declaration, nameFilter, location)
                 }
                 else -> throw IllegalArgumentException("Unsupported declaration kind: " + declaration)
             }

compiler/testData/diagnostics/tests/script/destructuringDeclarationsScript.txt

@@ -2,7 +2,14 @@ package
 
 public final class DestructuringDeclarationsScript : kotlin.script.templates.standard.ScriptTemplateWithArgs {
     public constructor DestructuringDeclarationsScript(/*0*/ args: kotlin.Array<kotlin.String>)
+    public final val a1: kotlin.Int
+    public final val a2: kotlin.String
     public final override /*1*/ /*fake_override*/ val args: kotlin.Array<kotlin.String>
+    public final val b1: kotlin.Int
+    public final val b2: kotlin.String
+    public final val c1: [ERROR : component1() return type]
+    public final val d1: kotlin.Int
+    public final val e1: kotlin.Int
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String

compiler/testData/diagnostics/tests/script/resolveInitializerOfDestructuringDeclarationOnce.txt

@@ -2,7 +2,10 @@ package
 
 public final class ResolveInitializerOfDestructuringDeclarationOnce : kotlin.script.templates.standard.ScriptTemplateWithArgs {
     public constructor ResolveInitializerOfDestructuringDeclarationOnce(/*0*/ args: kotlin.Array<kotlin.String>)
+    public final val a: kotlin.Unit
     public final override /*1*/ /*fake_override*/ val args: kotlin.Array<kotlin.String>
+    public final val b: kotlin.Unit
+    public final val c: kotlin.Unit
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String