Removing usages of tuples from test data

(KT-2358 Drop tuples)
 #KT-2358 In progress

compiler/testData/diagnostics/tests/controlStructures/kt657.kt

@@ -1,12 +1,14 @@
 //KT-657 Semantic checks for when without condition
 package kt657
 
+class Pair<A, B>(a: A, b: B)
+
 fun foo() =
     when {
         cond1() -> 12
         cond2() -> 2
         <!TYPE_MISMATCH_IN_CONDITION!>4<!> -> 34
-        <!TYPE_MISMATCH_IN_CONDITION!>#(1, 2)<!> -> 3
+        <!TYPE_MISMATCH_IN_CONDITION!>Pair(1, 2)<!> -> 3
         <!EXPECTED_CONDITION!>in 1..10<!> -> 34
         <!TYPE_MISMATCH_IN_CONDITION!>4<!> -> 38
         <!EXPECTED_CONDITION!>is Int<!> -> 33