Exclude functional types for the warning reporting about implicitly inferred a type parameter to Nothing

compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/checkers/ImplicitNothingAsTypeParameterCallChecker.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.resolve.calls.checkers
 
 import com.intellij.psi.PsiElement
+import org.jetbrains.kotlin.builtins.isBuiltinFunctionalType
 import org.jetbrains.kotlin.builtins.isFunctionType
 import org.jetbrains.kotlin.diagnostics.Errors
 import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall
@@ -37,7 +38,10 @@ object ImplicitNothingAsTypeParameterCallChecker : CallChecker {
     override fun check(resolvedCall: ResolvedCall<*>, reportOn: PsiElement, context: CallCheckerContext) {
         val resultingDescriptor = resolvedCall.resultingDescriptor
         val inferredReturnType = resultingDescriptor.returnType
-        if (inferredReturnType is DeferredType)
+        val isBuiltinFunctionalType =
+            resolvedCall.resultingDescriptor.dispatchReceiverParameter?.value?.type?.isBuiltinFunctionalType == true
+
+        if (inferredReturnType is DeferredType || isBuiltinFunctionalType)
             return
         if (resultingDescriptor.name !in SPECIAL_FUNCTION_NAMES && resolvedCall.call.typeArguments.isEmpty()) {
             val lambdasFromArgumentsReturnTypes =

compiler/testData/diagnostics/tests/controlStructures/notAFunctionLabel_after.kt

@@ -52,7 +52,7 @@ fun testLoopLabelInReturn(xs: List<Int>) {
 
 fun testValLabelInReturn() {
     <!REDUNDANT_LABEL_WARNING!>L@<!> val fn = { <!NOT_A_FUNCTION_LABEL!>return@L<!> }
-    <!IMPLICIT_NOTHING_AS_TYPE_PARAMETER!>fn<!>()
+    fn()
 }
 
 fun testHighOrderFunctionCallLabelInReturn() {

compiler/testData/diagnostics/tests/controlStructures/notAFunctionLabel_before.kt

@@ -52,7 +52,7 @@ fun testLoopLabelInReturn(xs: List<Int>) {
 
 fun testValLabelInReturn() {
     <!REDUNDANT_LABEL_WARNING!>L@<!> val fn = { <!NOT_A_FUNCTION_LABEL_WARNING!>return@L<!> }
-    <!IMPLICIT_NOTHING_AS_TYPE_PARAMETER!>fn<!>()
+    fn()
 }
 
 fun testHighOrderFunctionCallLabelInReturn() {

compiler/testData/diagnostics/tests/typeParameters/implicitNothingAsTypeParameter.kt

@@ -89,3 +89,15 @@ fun <InputT, OutputT : Any, RenderingT> stateless(
 interface Worker<out T>
 
 interface RenderContext<StateT, in OutputT : Any>
+
+val emptyOrNull: List<Nothing>? = null
+val x = emptyOrNull?.<!OI;IMPLICIT_NOTHING_AS_TYPE_PARAMETER!>get<!>(0)
+
+val errorCompletion = { <!OI;UNUSED_ANONYMOUS_PARAMETER!>e<!>: Throwable -> throw Exception() }
+
+fun test1() {
+    errorCompletion(Exception("fail"))
+}
+fun test2() {
+    errorCompletion.invoke(Exception("fail"))
+}