KT-11733 Cannot infer type parameter in SAM with nullability annotations

#KT-11733 Fixed

compiler/testData/diagnostics/tests/functionLiterals/kt11733.kt

@@ -0,0 +1,15 @@
+// !CHECK_TYPE
+
+interface Predicate<T>
+
+fun <T> Predicate(<!UNUSED_PARAMETER!>x<!>: (T?) -> Boolean): Predicate<T> = null!!
+
+fun foo() {
+    process(Predicate {
+        x -> x checkType { _<String?>() }
+
+        true
+    })
+}
+
+fun process(<!UNUSED_PARAMETER!>x<!>: Predicate<String>) {}