K2 Scripting: support script top-level destructuring declarations

compiler/testData/codegen/script/destructuringDeclaration.fir.ir.txt

@@ -0,0 +1,67 @@
+FILE fqName:<root> fileName:/destructuringDeclaration.kts
+  SCRIPT
+    COMPOSITE type=kotlin.Unit origin=DESTRUCTURING_DECLARATION
+      VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:<root>.<script-destructuringDeclaration.kts>.A [val]
+        CONSTRUCTOR_CALL 'public constructor <init> () declared in <root>.<script-destructuringDeclaration.kts>.A' type=<root>.<script-destructuringDeclaration.kts>.A origin=null
+      SET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:abc type:kotlin.Int visibility:private [final]' type=kotlin.Unit origin=null
+        value: CALL 'public final fun component1 (): kotlin.Int declared in <root>.<script-destructuringDeclaration.kts>.A' type=kotlin.Int origin=COMPONENT_N(index=1)
+          $this: GET_VAR 'val tmp_0: <root>.<script-destructuringDeclaration.kts>.A declared in <root>.<script-destructuringDeclaration.kts>' type=<root>.<script-destructuringDeclaration.kts>.A origin=null
+      SET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:def type:kotlin.Int visibility:private [final]' type=kotlin.Unit origin=null
+        value: CALL 'public final fun component2 (): kotlin.Int declared in <root>.<script-destructuringDeclaration.kts>.A' type=kotlin.Int origin=COMPONENT_N(index=2)
+          $this: GET_VAR 'val tmp_0: <root>.<script-destructuringDeclaration.kts>.A declared in <root>.<script-destructuringDeclaration.kts>' type=<root>.<script-destructuringDeclaration.kts>.A origin=null
+    PROPERTY name:abc visibility:local modality:FINAL [val]
+      FIELD PROPERTY_BACKING_FIELD name:abc type:kotlin.Int visibility:private [final]
+      FUN DEFAULT_PROPERTY_ACCESSOR name:<get-abc> visibility:local modality:FINAL <> () returnType:kotlin.Int
+        correspondingProperty: PROPERTY name:abc visibility:local modality:FINAL [val]
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='local final fun <get-abc> (): kotlin.Int declared in <root>.<script-destructuringDeclaration.kts>'
+            GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:abc type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
+    PROPERTY name:def visibility:local modality:FINAL [val]
+      FIELD PROPERTY_BACKING_FIELD name:def type:kotlin.Int visibility:private [final]
+      FUN DEFAULT_PROPERTY_ACCESSOR name:<get-def> visibility:local modality:FINAL <> () returnType:kotlin.Int
+        correspondingProperty: PROPERTY name:def visibility:local modality:FINAL [val]
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='local final fun <get-def> (): kotlin.Int declared in <root>.<script-destructuringDeclaration.kts>'
+            GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:def type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
+    PROPERTY name:rv visibility:public modality:FINAL [val]
+      FIELD PROPERTY_BACKING_FIELD name:rv type:kotlin.Int visibility:private [final]
+        EXPRESSION_BODY
+          CALL 'public final fun plus (other: kotlin.Int): kotlin.Int declared in kotlin.Int' type=kotlin.Int origin=PLUS
+            $this: CALL 'local final fun <get-abc> (): kotlin.Int declared in <root>.<script-destructuringDeclaration.kts>' type=kotlin.Int origin=GET_PROPERTY
+            other: CALL 'local final fun <get-def> (): kotlin.Int declared in <root>.<script-destructuringDeclaration.kts>' type=kotlin.Int origin=GET_PROPERTY
+      FUN DEFAULT_PROPERTY_ACCESSOR name:<get-rv> visibility:public modality:FINAL <> () returnType:kotlin.Int
+        correspondingProperty: PROPERTY name:rv visibility:public modality:FINAL [val]
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='public final fun <get-rv> (): kotlin.Int declared in <root>.<script-destructuringDeclaration.kts>'
+            GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:rv type:kotlin.Int visibility:private [final]' type=kotlin.Int origin=null
+    CLASS CLASS name:A modality:FINAL visibility:public superTypes:[kotlin.Any]
+      $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.<script-destructuringDeclaration.kts>.A
+      CONSTRUCTOR visibility:public <> () returnType:<root>.<script-destructuringDeclaration.kts>.A [primary]
+        BLOCK_BODY
+          DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () declared in kotlin.Any'
+          INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:A modality:FINAL visibility:public superTypes:[kotlin.Any]'
+      FUN name:component1 visibility:public modality:FINAL <> ($this:<root>.<script-destructuringDeclaration.kts>.A) returnType:kotlin.Int [operator]
+        $this: VALUE_PARAMETER name:<this> type:<root>.<script-destructuringDeclaration.kts>.A
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='public final fun component1 (): kotlin.Int declared in <root>.<script-destructuringDeclaration.kts>.A'
+            CONST Int type=kotlin.Int value=123
+      FUN name:component2 visibility:public modality:FINAL <> ($this:<root>.<script-destructuringDeclaration.kts>.A) returnType:kotlin.Int [operator]
+        $this: VALUE_PARAMETER name:<this> type:<root>.<script-destructuringDeclaration.kts>.A
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='public final fun component2 (): kotlin.Int declared in <root>.<script-destructuringDeclaration.kts>.A'
+            CONST Int type=kotlin.Int value=2
+      FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+        overridden:
+          public open fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Any
+        $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+        VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+      FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+        overridden:
+          public open fun hashCode (): kotlin.Int declared in kotlin.Any
+        $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+        overridden:
+          public open fun toString (): kotlin.String declared in kotlin.Any
+        $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:kotlin.script.templates.standard.ScriptTemplateWithArgs
+    VAR SCRIPT_CALL_PARAMETER name:args type:kotlin.Array<kotlin.String> [val]

compiler/testData/codegen/script/destructuringDeclaration.kts

@@ -1,4 +1,4 @@
-// IGNORE_BACKEND_K2: JVM_IR
+// DUMP_IR
 
 val (abc, def) = A()
 

compiler/testData/codegen/script/destructuringDeclarationUnderscore.kts

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_K2: JVM_IR
 
 val (_, b, _) = A()
 

compiler/testData/codegen/script/kt22029.kts

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_K2: JVM_IR
 
 data class Pair(val first: Int, val second: Int)
 

compiler/testData/codegen/script/twoDestructuringDeclarations.kts

@@ -0,0 +1,16 @@
+val (a, b) = A()
+val (c, d) = B()
+
+val rv = (a + b) * (c + d)
+
+class A {
+    operator fun component1() = 1
+    operator fun component2() = 5
+}
+
+class B {
+    operator fun component1() = 3
+    operator fun component2() = 4
+}
+
+// expected: rv: 42