Add test for KT-50498

compiler/testData/diagnostics/tests/inference/builderInference/kt50498.kt

@@ -0,0 +1,11 @@
+// FIR_IDENTICAL
+fun <T, R> baz(body: (List<R>) -> T): T = TODO()
+
+fun test3() {
+    <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>baz<!> {
+        true
+    }
+    <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>baz<!> { x ->
+        true
+    }
+}

compiler/testData/diagnostics/tests/inference/builderInference/kt50498.txt

@@ -0,0 +1,4 @@
+package
+
+public fun </*0*/ T, /*1*/ R> baz(/*0*/ body: (kotlin.collections.List<R>) -> T): T
+public fun test3(): kotlin.Unit