Adjust testData to new labels syntax

compiler/testData/diagnostics/tests/resolve/nestedCalls/analyzeUnmappedArguments.kt

@@ -1,7 +1,7 @@
 package c
 
 fun test() {
-    with (1) @l {
+    with (1) l@ {
         foo(1, <!NAMED_PARAMETER_NOT_FOUND!>zz<!> = { this@l } )
     }
 }