Use 'run' function instead of 'synchronized' in KT-51036 test

It should be enough to reproduce the issue and makes the test runnable on all backends

compiler/testData/codegen/box/unit/kt51036.kt

@@ -1,8 +1,4 @@
 // WITH_STDLIB
-// IGNORE_BACKEND: WASM
-//  ^ Unresolved reference: synchronized
-// IGNORE_BACKEND: NATIVE
-//  ^ Unresolved reference: synchronized
 
 fun box(): String {
     A().close()
@@ -12,6 +8,5 @@ fun box(): String {
 class A {
     companion object;
     operator fun String.invoke() = Unit
-    @Suppress("DEPRECATION_ERROR")
-    fun close() = synchronized(this) { "abc" }()
+    fun close() = kotlin.run { "abc" }()
 }

compiler/testData/ir/irText/expressions/kt51036.fir.ir.txt

@@ -1,61 +0,0 @@
-FILE fqName:<root> fileName:/kt51036.kt
-  CLASS CLASS name:A modality:FINAL visibility:public superTypes:[kotlin.Any]
-    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.A
-    CONSTRUCTOR visibility:public <> () returnType:<root>.A [primary]
-      BLOCK_BODY
-        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
-        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:A modality:FINAL visibility:public superTypes:[kotlin.Any]'
-    CLASS OBJECT name:Companion modality:FINAL visibility:public [companion] superTypes:[kotlin.Any]
-      $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.A.Companion
-      CONSTRUCTOR visibility:private <> () returnType:<root>.A.Companion [primary]
-        BLOCK_BODY
-          DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
-          INSTANCE_INITIALIZER_CALL classDescriptor='CLASS OBJECT name:Companion modality:FINAL visibility:public [companion] superTypes:[kotlin.Any]'
-      FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($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
-        $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN name:invoke visibility:public modality:FINAL <> ($this:<root>.A, $receiver:kotlin.String) returnType:kotlin.Unit [operator]
-      $this: VALUE_PARAMETER name:<this> type:<root>.A
-      $receiver: VALUE_PARAMETER name:<this> type:kotlin.String
-      BLOCK_BODY
-        RETURN type=kotlin.Nothing from='public final fun invoke (): kotlin.Unit [operator] declared in <root>.A'
-          GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
-    FUN name:close visibility:public modality:FINAL <> ($this:<root>.A) returnType:kotlin.Unit
-      annotations:
-        Suppress(names = ['DEPRECATION_ERROR'])
-      $this: VALUE_PARAMETER name:<this> type:<root>.A
-      BLOCK_BODY
-        RETURN type=kotlin.Nothing from='public final fun close (): kotlin.Unit declared in <root>.A'
-          CALL 'public final fun invoke (): kotlin.Unit [operator] declared in <root>.A' type=kotlin.Unit origin=null
-            $this: GET_VAR '<this>: <root>.A declared in <root>.A.close' type=<root>.A origin=null
-            $receiver: CALL 'public final fun synchronized <R> (lock: kotlin.Any, block: kotlin.Function0<R of kotlin.StandardKt.synchronized>): R of kotlin.StandardKt.synchronized [inline] declared in kotlin.StandardKt' type=kotlin.String origin=null
-              <R>: kotlin.String
-              lock: GET_VAR '<this>: <root>.A declared in <root>.A.close' type=<root>.A origin=null
-              block: FUN_EXPR type=kotlin.Function0<kotlin.String> origin=LAMBDA
-                FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.String
-                  BLOCK_BODY
-                    RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.String declared in <root>.A.close'
-                      CONST String type=kotlin.String value="Abc"
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($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

compiler/testData/ir/irText/expressions/kt51036.ir.txt

@@ -31,16 +31,13 @@ FILE fqName:<root> fileName:/kt51036.kt
         RETURN type=kotlin.Nothing from='public final fun invoke (): kotlin.Unit [operator] declared in <root>.A'
           GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
     FUN name:close visibility:public modality:FINAL <> ($this:<root>.A) returnType:kotlin.Unit
-      annotations:
-        Suppress(names = ['DEPRECATION_ERROR'])
       $this: VALUE_PARAMETER name:<this> type:<root>.A
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun close (): kotlin.Unit declared in <root>.A'
-          CALL 'public final fun invoke (): kotlin.Unit [operator] declared in <root>.A' type=kotlin.Unit origin=INVOKE
+          CALL 'public final fun invoke (): kotlin.Unit [operator] declared in <root>.A' type=kotlin.Unit origin=null
             $this: GET_VAR '<this>: <root>.A declared in <root>.A.close' type=<root>.A origin=null
-            $receiver: CALL 'public final fun synchronized <R> (lock: kotlin.Any, block: kotlin.Function0<R of kotlin.StandardKt.synchronized>): R of kotlin.StandardKt.synchronized [inline] declared in kotlin.StandardKt' type=kotlin.String origin=null
+            $receiver: CALL 'public final fun run <R> (block: kotlin.Function0<R of kotlin.StandardKt.run>): R of kotlin.StandardKt.run [inline] declared in kotlin.StandardKt' type=kotlin.String origin=null
               <R>: kotlin.String
-              lock: GET_VAR '<this>: <root>.A declared in <root>.A.close' type=<root>.A origin=null
               block: FUN_EXPR type=kotlin.Function0<kotlin.String> origin=LAMBDA
                 FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.String
                   BLOCK_BODY

compiler/testData/ir/irText/expressions/kt51036.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // WITH_STDLIB
 // IGNORE_BACKEND: JS_IR
 // IGNORE_BACKEND: JS_IR_ES6
@@ -6,6 +7,5 @@
 class A {
     companion object;
     operator fun String.invoke() = Unit
-    @Suppress("DEPRECATION_ERROR")
-    fun close() = synchronized(this) { "Abc" }()
+    fun close() = kotlin.run { "Abc" }()
 }