Regression test #KT-8277 Can't Reproduce

compiler/testData/diagnostics/tests/controlFlowAnalysis/elvisNotProcessed.kt

@@ -0,0 +1,37 @@
+// See KT-8277
+
+val v = { true } <!USELESS_ELVIS!><!USELESS_ELVIS_ON_LAMBDA_EXPRESSION!>?:<!> ( { true } <!USELESS_ELVIS_ON_LAMBDA_EXPRESSION!>?:<!> null!! )<!>
+
+val w = if (true) {
+    { true }
+}
+else {
+    { true } <!USELESS_ELVIS_ON_LAMBDA_EXPRESSION!>?:<!> null!!
+}
+
+val <!IMPLICIT_NOTHING_PROPERTY_TYPE!>ww<!> = if (true) {
+    <!TYPE_MISMATCH!>{ true }<!> <!USELESS_ELVIS_ON_LAMBDA_EXPRESSION!>?:<!> null!!
+}
+else if (true) {
+    <!TYPE_MISMATCH!>{ true }<!> <!USELESS_ELVIS_ON_LAMBDA_EXPRESSION!>?:<!> null!!
+}
+else {
+    null!!
+}
+
+val <!IMPLICIT_NOTHING_PROPERTY_TYPE!>n<!> = null ?: (null ?: <!TYPE_MISMATCH!>{ true }<!>)
+
+fun l(): (() -> Boolean)? = null
+
+val b = null ?: ( l() ?: false)
+
+val bb = null ?: ( l() ?: null!!)
+
+val bbb = null ?: ( l() ?: null)
+
+val bbbb = ( l() ?: null) ?: ( l() ?: null)
+
+fun f(x : Long?): Long {
+    var a = x ?: (<!TYPE_MISMATCH!>fun() {}<!> <!USELESS_ELVIS!><!USELESS_ELVIS_ON_LAMBDA_EXPRESSION!>?:<!> <!TYPE_MISMATCH!>fun() {}<!><!>)
+    return <!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>a<!>
+}

compiler/testData/diagnostics/tests/controlFlowAnalysis/elvisNotProcessed.txt

@@ -0,0 +1,12 @@
+package
+
+public val b: kotlin.Any
+public val bb: () -> kotlin.Boolean
+public val bbb: (() -> kotlin.Boolean)?
+public val bbbb: (() -> kotlin.Boolean)?
+public val n: kotlin.Nothing
+public val v: () -> kotlin.Boolean
+public val w: () -> kotlin.Boolean
+public val ww: kotlin.Nothing
+public fun f(/*0*/ x: kotlin.Long?): kotlin.Long
+public fun l(): (() -> kotlin.Boolean)?

compiler/tests/org/jetbrains/kotlin/checkers/DiagnosticsTestGenerated.java

@@ -2853,6 +2853,12 @@ public class DiagnosticsTestGenerated extends AbstractDiagnosticsTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("elvisNotProcessed.kt")
+            public void testElvisNotProcessed() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/controlFlowAnalysis/elvisNotProcessed.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("initializationInLambda.kt")
             public void testInitializationInLambda() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/diagnostics/tests/controlFlowAnalysis/initializationInLambda.kt");