KT-7068 None of the following functions can be called with two functions with extention function parameter

#KT-7068 Fixed

compiler/testData/diagnostics/tests/overload/kt7068.kt

@@ -0,0 +1,17 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+fun withLambda(block : Int.(String) -> Unit) {
+}
+
+fun withLambda(o : Int, block : Int.(String) -> Unit) {
+}
+
+fun test() {
+    withLambda {
+        it.length()
+    }
+
+    withLambda { r -> // no error should be here
+        r.length()
+    }
+}