RawFirBuilder: fix label bounding for property initialization

#KT-58076 Fixed

compiler/fir/analysis-tests/testData/resolve/localClasses/lambdaWithAnonymousObject.fir.txt

@@ -13,8 +13,8 @@ FILE: lambdaWithAnonymousObject.kt
                 super<R|kotlin/Any|>()
             }
 
-            public open override val action: R|() -> kotlin/Unit| = myRun@fun <anonymous>(): R|kotlin/Unit| <inline=Unknown>  {
-                ^@myRun Unit
+            public open override val action: R|() -> kotlin/Unit| = fun <anonymous>(): R|kotlin/Unit| <inline=Unknown>  {
+                ^ Unit
             }
 
                 public get(): R|() -> kotlin/Unit|

compiler/fir/raw-fir/light-tree2fir/src/org/jetbrains/kotlin/fir/lightTree/converter/DeclarationsConverter.kt

@@ -1186,7 +1186,11 @@ class DeclarationsConverter(
                     accessors += it
                 }
                 BACKING_FIELD -> fieldDeclaration = it
-                else -> if (it.isExpression()) propertyInitializer = expressionConverter.getAsFirExpression(it, "Should have initializer")
+                else -> if (it.isExpression()) {
+                    context.calleeNamesForLambda += null
+                    propertyInitializer = expressionConverter.getAsFirExpression(it, "Should have initializer")
+                    context.calleeNamesForLambda.removeLast()
+                }
             }
         }
 

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

@@ -1722,9 +1722,14 @@ open class RawFirBuilder(
 
         private fun KtDeclarationWithInitializer.toInitializerExpression() =
             runIf(hasInitializer()) {
-                buildOrLazyExpression(null) {
+                this@RawFirBuilder.context.calleeNamesForLambda += null
+
+                val expression = buildOrLazyExpression(null) {
                     initializer.toFirExpression("Should have initializer")
                 }
+
+                this@RawFirBuilder.context.calleeNamesForLambda.removeLast()
+                expression
             }
 
         private fun <T> KtProperty.toFirProperty(

compiler/testData/diagnostics/tests/labels/labelToOuterLambda.kt

@@ -1,5 +1,6 @@
 // FIR_IDENTICAL
-// ISSUE: KT-57880
+// ISSUE: KT-57880, KT-58076
+// DIAGNOSTICS: -UNUSED_VARIABLE, -ASSIGNED_BUT_NEVER_ACCESSED_VARIABLE
 
 fun outerLambda(action: String.() -> Unit) {}
 var lambda: Int.() -> Unit = {}
@@ -18,4 +19,16 @@ fun main() {
             consumeInt(this@innerLambda)
         }
     }
+
+    lateinit var c: Int.() -> Unit
+    val a = "hello".apply {
+        val b: Int.() -> Unit = {
+            this@apply.hello()
+        }
+        c = {
+            this@apply.hello()
+        }
+    }
 }
+
+fun String.hello() = this