[LL FIR] rebind returnTarget for delegate accessors during psi2fir

It is safe to rebind returnTarget to the original declaration during
psi2fir as it doesn't affect the resolution. We already have the same
logic for regular functions/property accessors.
This change is crucial in the context of parallel implicit type
resolution because it affects CFG builder in a bad way in the case
of on-air resolution

^KT-56551

compiler/fir/raw-fir/psi2fir/src/org/jetbrains/kotlin/fir/builder/PsiRawFirBuilder.kt

@@ -59,7 +59,10 @@ open class PsiRawFirBuilder(
     val baseScopeProvider: FirScopeProvider,
     bodyBuildingMode: BodyBuildingMode = BodyBuildingMode.NORMAL,
 ) : AbstractRawFirBuilder<PsiElement>(session) {
-    protected open fun bindFunctionTarget(target: FirFunctionTarget, function: FirFunction) = target.bind(function)
+    protected open fun bindFunctionTarget(target: FirFunctionTarget, function: FirFunction) {
+        target.bind(function)
+    }
+
     protected open fun FirFunctionBuilder.additionalFunctionInit() {}
     protected open fun FirPropertyBuilder.additionalPropertyInit() {}
     protected open fun FirPropertyAccessorBuilder.additionalPropertyAccessorInit() {}
@@ -2080,6 +2083,7 @@ open class PsiRawFirBuilder(
                                 isExtension = receiverTypeReference != null,
                                 lazyDelegateExpression = lazyDelegateExpression,
                                 lazyBodyForGeneratedAccessors = lazyBody,
+                                ::bindFunctionTarget,
                             )
                         }
                     }

compiler/fir/raw-fir/raw-fir.common/src/org/jetbrains/kotlin/fir/builder/ConversionUtils.kt

@@ -20,6 +20,7 @@ import org.jetbrains.kotlin.fir.contracts.FirLegacyRawContractDescription
 import org.jetbrains.kotlin.fir.contracts.builder.buildLegacyRawContractDescription
 import org.jetbrains.kotlin.fir.declarations.FirCallableDeclaration
 import org.jetbrains.kotlin.fir.declarations.FirDeclarationOrigin
+import org.jetbrains.kotlin.fir.declarations.FirFunction
 import org.jetbrains.kotlin.fir.declarations.FirReceiverParameter
 import org.jetbrains.kotlin.fir.declarations.FirVariable
 import org.jetbrains.kotlin.fir.declarations.builder.*
@@ -334,6 +335,7 @@ fun <T> FirPropertyBuilder.generateAccessorsByDelegate(
     isExtension: Boolean,
     lazyDelegateExpression: FirLazyExpression? = null,
     lazyBodyForGeneratedAccessors: FirLazyBlock? = null,
+    bindFunction: (target: FirFunctionTarget, function: FirFunction) -> Unit = FirFunctionTarget::bind,
 ) {
     if (delegateBuilder == null) return
     val delegateFieldSymbol = FirDelegateFieldSymbol(symbol.callableId).also {
@@ -481,10 +483,11 @@ fun <T> FirPropertyBuilder.generateAccessorsByDelegate(
             }
             propertySymbol = this@generateAccessorsByDelegate.symbol
         }.also {
-            returnTarget.bind(it)
+            bindFunction(returnTarget, it)
             it.initContainingClassAttr(context)
         }
     }
+
     if (isVar && (setter == null || setter is FirDefaultPropertyAccessor)) {
         val annotations = setter?.annotations
         val returnTarget = FirFunctionTarget(null, isLambda = false)
@@ -549,7 +552,7 @@ fun <T> FirPropertyBuilder.generateAccessorsByDelegate(
             }
             propertySymbol = this@generateAccessorsByDelegate.symbol
         }.also {
-            returnTarget.bind(it)
+            bindFunction(returnTarget, it)
             it.initContainingClassAttr(context)
         }
     }