Add 'mute' concept: move tests with unexpected behaviour to the corresponding folder

compiler/tests-spec/testData/diagnostics/notLinked/contracts/declarations/contractFunction/neg/2.kt

@@ -42,10 +42,7 @@ object case_3 {
     }
 }
 
-/*
- UNEXPECTED BEHAVIOUR
- ISSUES: KT-26244
- */
+// ISSUES: KT-26244
 class case_4 : _ClassLevel3() {
     fun <T : Number?>T.case_4_1(): Boolean {
         <!CONTRACT_NOT_ALLOWED!>contract<!> { returns(false) implies (<!USELESS_IS_CHECK!>this@case_4 !is _ClassLevel1<!>) }
@@ -79,10 +76,7 @@ class case_4 : _ClassLevel3() {
     fun case_4_5() = _ClassLevel3().case_4_5_wrap()
 }
 
-/*
- UNEXPECTED BEHAVIOUR
- ISSUES: KT-26244
- */
+// ISSUES: KT-26244
 class case_5<T> : _ClassLevel5() {
     inner class case_5_1 {
         fun <K : Number?>K.case_5_1_1() {

compiler/tests-spec/testData/diagnostics/notLinked/contracts/declarations/contractFunction/neg/3.kt

@@ -0,0 +1,27 @@
+// !LANGUAGE: +AllowContractsForCustomFunctions +UseCallsInPlaceEffect
+// !DIAGNOSTICS: -INVISIBLE_REFERENCE -INVISIBLE_MEMBER
+// !USE_EXPERIMENTAL: kotlin.contracts.ExperimentalContracts
+
+/*
+ KOTLIN DIAGNOSTICS NOT LINKED SPEC TEST (NEGATIVE)
+
+ SECTION: contracts
+ CATEGORIES: declarations, contractFunction
+ NUMBER: 3
+ DESCRIPTION: Check that fun with contract and CallsInPlace effect is an inline function.
+ UNEXPECTED BEHAVIOUR
+ ISSUES: KT-26126
+ */
+
+import kotlin.contracts.*
+
+fun funWithContractExactlyOnce(block: () -> Unit) { // report about not-inline function is expected
+    contract { callsInPlace(block, InvocationKind.EXACTLY_ONCE) }
+    return block()
+}
+
+fun case_1() {
+    val value_1: Int
+    funWithContractExactlyOnce { value_1 = 10 } // back-end exception
+    value_1.inc()
+}

compiler/tests-spec/testData/diagnostics/notLinked/contracts/declarations/contractFunction/neg/3.txt

@@ -0,0 +1,5 @@
+package
+
+public fun case_1(): kotlin.Unit
+public fun funWithContractExactlyOnce(/*0*/ block: () -> kotlin.Unit): kotlin.Unit
+    CallsInPlace(block, EXACTLY_ONCE)

compiler/tests-spec/testData/diagnostics/notLinked/contracts/declarations/contractFunction/pos/1.kt

@@ -1,4 +1,4 @@
-// !LANGUAGE: +AllowContractsForCustomFunctions +UseCallsInPlaceEffect
+// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect
 // !DIAGNOSTICS: -INVISIBLE_REFERENCE -INVISIBLE_MEMBER
 // !USE_EXPERIMENTAL: kotlin.contracts.ExperimentalContracts
 
@@ -8,20 +8,30 @@
  SECTION: contracts
  CATEGORIES: declarations, contractFunction
  NUMBER: 1
- DESCRIPTION: Check that fun with contract and CallsInPlace effect is an inline function.
- UNEXPECTED BEHAVIOUR
- ISSUES: KT-26126
+ DESCRIPTION: Contract function usage before declaration it
  */
 
 import kotlin.contracts.*
 
-fun funWithContractExactlyOnce(block: () -> Unit) { // report about not-inline function is expected
-    contract { callsInPlace(block, InvocationKind.EXACTLY_ONCE) }
-    return block()
+fun case_1_1(x: Any?) {
+    if (case_1_2(x)) {
+        <!DEBUG_INFO_SMARTCAST!>x<!>.length
+    }
 }
 
-fun case_1() {
-    val value_1: Int
-    funWithContractExactlyOnce { value_1 = 10 } // back-end exception
-    value_1.inc()
+fun case_2_1(x: Number?) {
+    case_2_2(x)
+    println(<!DEBUG_INFO_SMARTCAST!>x<!>.toByte())
 }
+
+fun case_1_2(x: Any?): Boolean {
+    contract { returns(true) implies (x is String) }
+    return x is String
+}
+
+fun case_2_2(x: Any?) {
+    contract { returns() implies(x != null) }
+    if (x == null) throw Exception()
+}
+
+

compiler/tests-spec/testData/diagnostics/notLinked/contracts/declarations/contractFunction/pos/1.txt

@@ -1,5 +1,10 @@
 package
 
-public fun case_1(): kotlin.Unit
-public fun funWithContractExactlyOnce(/*0*/ block: () -> kotlin.Unit): kotlin.Unit
-    CallsInPlace(block, EXACTLY_ONCE)
+public fun case_1_1(/*0*/ x: kotlin.Any?): kotlin.Unit
+public fun case_1_2(/*0*/ x: kotlin.Any?): kotlin.Boolean
+    Returns(TRUE) -> x is String
+
+public fun case_2_1(/*0*/ x: kotlin.Number?): kotlin.Unit
+public fun case_2_2(/*0*/ x: kotlin.Any?): kotlin.Unit
+    Returns(WILDCARD) -> x != null
+