Add test for KT-55931

Author: dzharkov

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosisCompilerTestFE10TestdataTestGenerated.java

@@ -0,0 +1,23 @@
+// ISSUE: KT-55931
+// SKIP_TXT
+
+fun fun1() {}
+fun fun2() {}
+
+fun takeLambda(lambda: () -> Unit) = lambda()
+
+fun foo(b: Boolean) {
+    val x1 = if (b) { ::fun1 } else { ::fun2 } // OK
+    takeLambda {
+        val x2 = if (b) ::fun1 else ::fun2 // OK
+        // NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER and DEBUG_UNRESOLVED on both callable references
+        // Since 1.4.0 (NI)
+        val x3 = if (b) { ::fun1 } else { ::fun2 }
+    }
+
+    val w: () -> Unit = {
+        val x4 = if (b) ::fun1 else ::fun2 // OK
+        // OK, too
+        val x5 = if (b) { ::fun1 } else { ::fun2 }
+    }
+}

compiler/fir/analysis-tests/tests-gen/org/jetbrains/kotlin/test/runners/FirOldFrontendDiagnosticsTestGenerated.java

@@ -0,0 +1,23 @@
+// ISSUE: KT-55931
+// SKIP_TXT
+
+fun fun1() {}
+fun fun2() {}
+
+fun takeLambda(lambda: () -> Unit) = lambda()
+
+fun foo(b: Boolean) {
+    val x1 = if (b) { ::fun1 } else { ::fun2 } // OK
+    takeLambda {
+        val x2 = if (b) ::fun1 else ::fun2 // OK
+        // NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER and DEBUG_UNRESOLVED on both callable references
+        // Since 1.4.0 (NI)
+        val x3 = if (b) { <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>::<!DEBUG_INFO_MISSING_UNRESOLVED!>fun1<!><!> } else { <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>::<!DEBUG_INFO_MISSING_UNRESOLVED!>fun2<!><!> }
+    }
+
+    val w: () -> Unit = {
+        val x4 = if (b) ::fun1 else ::fun2 // OK
+        // OK, too
+        val x5 = if (b) { ::fun1 } else { ::fun2 }
+    }
+}