Fix recursion in contract declaration analysis. KT-26386 Fixed

Issue fixed only in old inference

compiler/tests-spec/testData/diagnostics/notLinked/contracts/declarations/contractBuilder/common/neg/5.exceptions.compiler.txt

@@ -1,2 +0,0 @@
-CASES: 4
-java.lang.StackOverflowError

compiler/tests-spec/testData/diagnostics/notLinked/contracts/declarations/contractBuilder/common/neg/5.kt

@@ -31,12 +31,10 @@ fun case_3(): Boolean {
 
 /*
  * TESTCASE NUMBER: 4
- * UNEXPECTED BEHAVIOUR
  * ISSUES: KT-26386
- * EXCEPTION: compiler
  */
 fun case_4(): Boolean? {
-    contract { returns(null) implies case_4() }
+    contract { returns(null) implies <!ERROR_IN_CONTRACT_DESCRIPTION, TYPE_MISMATCH!>case_4()<!> }
     return null
 }