[FE 1.0] Don't throw exception during substitution of accessors, just return original

compiler/testData/ir/irText/types/dontLeaveStubTypesInSetter.ir.txt

@@ -0,0 +1,67 @@
+FILE fqName:<root> fileName:/dontLeaveStubTypesInSetter.kt
+  CLASS CLASS name:Foo modality:FINAL visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Foo<T of <root>.Foo>
+    TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?] reified:false
+    CONSTRUCTOR visibility:public <> (x:T of <root>.Foo) returnType:<root>.Foo<T of <root>.Foo> [primary]
+      VALUE_PARAMETER name:x index:0 type:T of <root>.Foo
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:Foo modality:FINAL visibility:public superTypes:[kotlin.Any]'
+    PROPERTY name:x visibility:public modality:FINAL [var]
+      FIELD PROPERTY_BACKING_FIELD name:x type:T of <root>.Foo visibility:private
+        EXPRESSION_BODY
+          GET_VAR 'x: T of <root>.Foo declared in <root>.Foo.<init>' type=T of <root>.Foo origin=INITIALIZE_PROPERTY_FROM_PARAMETER
+      FUN DEFAULT_PROPERTY_ACCESSOR name:<get-x> visibility:public modality:FINAL <> ($this:<root>.Foo<T of <root>.Foo>) returnType:T of <root>.Foo
+        correspondingProperty: PROPERTY name:x visibility:public modality:FINAL [var]
+        $this: VALUE_PARAMETER name:<this> type:<root>.Foo<T of <root>.Foo>
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='public final fun <get-x> (): T of <root>.Foo declared in <root>.Foo'
+            GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:T of <root>.Foo visibility:private' type=T of <root>.Foo origin=null
+              receiver: GET_VAR '<this>: <root>.Foo<T of <root>.Foo> declared in <root>.Foo.<get-x>' type=<root>.Foo<T of <root>.Foo> origin=null
+      FUN DEFAULT_PROPERTY_ACCESSOR name:<set-x> visibility:public modality:FINAL <> ($this:<root>.Foo<T of <root>.Foo>, <set-?>:T of <root>.Foo) returnType:kotlin.Unit
+        correspondingProperty: PROPERTY name:x visibility:public modality:FINAL [var]
+        $this: VALUE_PARAMETER name:<this> type:<root>.Foo<T of <root>.Foo>
+        VALUE_PARAMETER name:<set-?> index:0 type:T of <root>.Foo
+        BLOCK_BODY
+          SET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:x type:T of <root>.Foo visibility:private' type=kotlin.Unit origin=null
+            receiver: GET_VAR '<this>: <root>.Foo<T of <root>.Foo> declared in <root>.Foo.<set-x>' type=<root>.Foo<T of <root>.Foo> origin=null
+            value: GET_VAR '<set-?>: T of <root>.Foo declared in <root>.Foo.<set-x>' type=T of <root>.Foo origin=null
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] 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
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  FUN name:foo visibility:public modality:FINAL <K> (x:kotlin.collections.MutableList<K of <root>.foo>) returnType:<root>.Foo<K of <root>.foo>
+    TYPE_PARAMETER name:K index:0 variance: superTypes:[kotlin.Any?] reified:false
+    VALUE_PARAMETER name:x index:0 type:kotlin.collections.MutableList<K of <root>.foo>
+    BLOCK_BODY
+      RETURN type=kotlin.Nothing from='public final fun foo <K> (x: kotlin.collections.MutableList<K of <root>.foo>): <root>.Foo<K of <root>.foo> declared in <root>'
+        CALL 'public final fun TODO (): kotlin.Nothing [inline] declared in kotlin.StandardKt' type=kotlin.Nothing origin=null
+  FUN name:main visibility:public modality:FINAL <> () returnType:kotlin.Unit
+    BLOCK_BODY
+      VAR name:x type:kotlin.collections.List<kotlin.String> [val]
+        CALL 'public final fun buildList <E> (builderAction: @[ExtensionFunctionType] kotlin.Function1<kotlin.collections.MutableList<E of kotlin.collections.CollectionsKt.buildList>, kotlin.Unit>): kotlin.collections.List<E of kotlin.collections.CollectionsKt.buildList> [inline] declared in kotlin.collections.CollectionsKt' type=kotlin.collections.List<kotlin.String> origin=null
+          <E>: kotlin.String
+          builderAction: FUN_EXPR type=@[ExtensionFunctionType] kotlin.Function1<kotlin.collections.MutableList<kotlin.String>, kotlin.Unit> origin=LAMBDA
+            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> ($receiver:kotlin.collections.MutableList<kotlin.String>) returnType:kotlin.Unit
+              $receiver: VALUE_PARAMETER name:$this$buildList type:kotlin.collections.MutableList<kotlin.String>
+              BLOCK_BODY
+                TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
+                  CALL 'public abstract fun add (element: E of kotlin.collections.MutableList): kotlin.Boolean declared in kotlin.collections.MutableList' type=kotlin.Boolean origin=null
+                    $this: GET_VAR '$this$buildList: kotlin.collections.MutableList<kotlin.String> declared in <root>.main.<anonymous>' type=kotlin.collections.MutableList<kotlin.String> origin=null
+                    element: CONST String type=kotlin.String value=""
+                VAR name:foo type:<root>.Foo<kotlin.String> [val]
+                  CALL 'public final fun foo <K> (x: kotlin.collections.MutableList<K of <root>.foo>): <root>.Foo<K of <root>.foo> declared in <root>' type=<root>.Foo<kotlin.String> origin=null
+                    <K>: kotlin.String
+                    x: GET_VAR '$this$buildList: kotlin.collections.MutableList<kotlin.String> declared in <root>.main.<anonymous>' type=kotlin.collections.MutableList<kotlin.String> origin=null
+                CALL 'public final fun <set-x> (<set-?>: T of <root>.Foo): kotlin.Unit declared in <root>.Foo' type=kotlin.Unit origin=EQ
+                  $this: GET_VAR 'val foo: <root>.Foo<kotlin.String> [val] declared in <root>.main.<anonymous>' type=<root>.Foo<kotlin.String> origin=null
+                  <set-?>: CONST String type=kotlin.String value=""

compiler/testData/ir/irText/types/dontLeaveStubTypesInSetter.kt

@@ -0,0 +1,14 @@
+// FIR_IDENTICAL
+// WITH_STDLIB
+
+class Foo<T>(var x: T)
+
+fun <K> foo(x: MutableList<K>): Foo<K> = TODO()
+
+fun main() {
+    val x = buildList {
+        add("")
+        val foo = foo(this)
+        foo.x = ""
+    }
+}

compiler/testData/ir/irText/types/dontLeaveStubTypesInSetter.kt.txt

@@ -0,0 +1,26 @@
+class Foo<T : Any?> {
+  constructor(x: T) /* primary */ {
+    super/*Any*/()
+    /* <init>() */
+
+  }
+
+  var x: T
+    field = x
+    get
+    set
+
+}
+
+fun <K : Any?> foo(x: MutableList<K>): Foo<K> {
+  return TODO()
+}
+
+fun main() {
+  val x: List<String> = buildList<String>(builderAction = local fun MutableList<String>.<anonymous>() {
+    $this$buildList.add(element = "") /*~> Unit */
+    val foo: Foo<String> = foo<String>(x = $this$buildList)
+    foo.<set-x>(<set-?> = "")
+  }
+)
+}