PSI2IR KT-46069 resolve IR-based type parameter descriptors to symbols

compiler/testData/ir/irText/expressions/callableReferences/kt46069.kt

@@ -0,0 +1,14 @@
+// SKIP_KT_DUMP
+
+class ObjectAssert<ACTUAL> {
+    fun describedAs(description: String?, vararg args: Any?): ObjectAssert<ACTUAL>? = null
+}
+
+object Assertions {
+    fun <S> assertThat(actual: S): ObjectAssert<S> = ObjectAssert()
+}
+
+fun <T : Any> T?.assertNotNull(description: String? = null) {
+    val assert = Assertions.assertThat(this)
+    description?.let(assert::describedAs)
+}