Find Usages: Fix processing of label references in 'return' expressions

#KT-7516 Fixed

idea/testData/findUsages/kotlin/findFunctionUsages/labeledReturns.0.kt

@@ -0,0 +1,12 @@
+// PSI_ELEMENT: org.jetbrains.kotlin.psi.KtNamedFunction
+// OPTIONS: usages
+
+fun <R> <caret>foo(f: () -> R) = f()
+
+fun test() {
+    foo {
+        return@foo false
+    }
+
+    foo(fun(): Boolean { return@foo false })
+}

idea/testData/findUsages/kotlin/findFunctionUsages/labeledReturns.results.txt

@@ -0,0 +1,4 @@
+Function call 11 foo(fun(): Boolean { return@foo false })
+Function call 7 foo {
+Unclassified usage 11 foo(fun(): Boolean { return@foo false })
+Unclassified usage 8 return@foo false