Allow use reference to reified type parameters in contracts since 1.4

compiler/testData/diagnostics/testsWithStdLib/contracts/dsl/errors/contractCallSites.1.4.fir.kt

@@ -1,4 +1,4 @@
-// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect +AllowContractsForNonOverridableMembers
+// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect +AllowContractsForNonOverridableMembers +AllowReifiedGenericsInContracts
 // !USE_EXPERIMENTAL: kotlin.contracts.ExperimentalContracts
 // !DIAGNOSTICS: -INVISIBLE_REFERENCE -INVISIBLE_MEMBER -NOTHING_TO_INLINE -ABSTRACT_FUNCTION_IN_NON_ABSTRACT_CLASS -ABSTRACT_FUNCTION_WITH_BODY -UNUSED_PARAMETER -UNUSED_VARIABLE -EXPERIMENTAL_FEATURE_WARNING
 

compiler/testData/diagnostics/testsWithStdLib/contracts/dsl/errors/contractCallSites.1.4.kt

@@ -1,4 +1,4 @@
-// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect +AllowContractsForNonOverridableMembers
+// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect +AllowContractsForNonOverridableMembers +AllowReifiedGenericsInContracts
 // !USE_EXPERIMENTAL: kotlin.contracts.ExperimentalContracts
 // !DIAGNOSTICS: -INVISIBLE_REFERENCE -INVISIBLE_MEMBER -NOTHING_TO_INLINE -ABSTRACT_FUNCTION_IN_NON_ABSTRACT_CLASS -ABSTRACT_FUNCTION_WITH_BODY -UNUSED_PARAMETER -UNUSED_VARIABLE -EXPERIMENTAL_FEATURE_WARNING
 

compiler/testData/diagnostics/testsWithStdLib/contracts/dsl/errors/contractCallSites.1.4.txt

@@ -21,9 +21,15 @@ public open class Class {
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public final inline fun inlineMember(/*0*/ x: kotlin.Boolean): kotlin.Unit
+        Returns(WILDCARD) -> x
+
     public final fun member(/*0*/ x: kotlin.Boolean): kotlin.Unit
+        Returns(WILDCARD) -> x
+
     public open fun openMemeber(/*0*/ x: kotlin.Boolean): kotlin.Unit
     public final suspend fun suspendMember(/*0*/ x: kotlin.Boolean): kotlin.Unit
+        Returns(WILDCARD) -> x
+
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
 }
 

compiler/testData/diagnostics/testsWithStdLib/contracts/dsl/errors/typeReferences.1.3.fir.kt

@@ -1,4 +1,4 @@
-// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect -AllowContractsForNonOverridableMembers
+// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect -AllowContractsForNonOverridableMembers -AllowReifiedGenericsInContracts
 // !USE_EXPERIMENTAL: kotlin.contracts.ExperimentalContracts
 // !DIAGNOSTICS: -INVISIBLE_REFERENCE -INVISIBLE_MEMBER
 

compiler/testData/diagnostics/testsWithStdLib/contracts/dsl/errors/typeReferences.1.3.kt

@@ -1,4 +1,4 @@
-// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect -AllowContractsForNonOverridableMembers
+// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect -AllowContractsForNonOverridableMembers -AllowReifiedGenericsInContracts
 // !USE_EXPERIMENTAL: kotlin.contracts.ExperimentalContracts
 // !DIAGNOSTICS: -INVISIBLE_REFERENCE -INVISIBLE_MEMBER
 

compiler/testData/diagnostics/testsWithStdLib/contracts/dsl/errors/typeReferences.1.4.fir.kt

@@ -1,4 +1,4 @@
-// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect +AllowContractsForNonOverridableMembers
+// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect +AllowContractsForNonOverridableMembers +AllowReifiedGenericsInContracts
 // !USE_EXPERIMENTAL: kotlin.contracts.ExperimentalContracts
 // !DIAGNOSTICS: -INVISIBLE_REFERENCE -INVISIBLE_MEMBER
 

compiler/testData/diagnostics/testsWithStdLib/contracts/dsl/errors/typeReferences.1.4.kt

@@ -1,4 +1,4 @@
-// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect +AllowContractsForNonOverridableMembers
+// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect +AllowContractsForNonOverridableMembers +AllowReifiedGenericsInContracts
 // !USE_EXPERIMENTAL: kotlin.contracts.ExperimentalContracts
 // !DIAGNOSTICS: -INVISIBLE_REFERENCE -INVISIBLE_MEMBER
 
@@ -6,7 +6,7 @@ import kotlin.contracts.*
 
 inline fun <reified T> referToReifiedGeneric(x: Any?) {
     contract {
-        returns() implies (x is <!ERROR_IN_CONTRACT_DESCRIPTION("references to type parameters are forbidden in contracts")!>T<!>)
+        returns() implies (x is T)
     }
 }
 

compiler/testData/diagnostics/testsWithStdLib/contracts/dsl/errors/typeReferences.1.4.txt

@@ -6,6 +6,8 @@ public fun referToAliasedSimpleType(/*0*/ x: kotlin.Any?): kotlin.Unit
     Returns(WILDCARD) -> x is Int
 
 public inline fun </*0*/ reified T> referToReifiedGeneric(/*0*/ x: kotlin.Any?): kotlin.Unit
+    Returns(WILDCARD) -> x is T
+
 public fun referToSubstituted(/*0*/ x: kotlin.Any?): kotlin.Unit
 public fun referToSubstitutedWithStar(/*0*/ x: kotlin.Any?): kotlin.Unit
     Returns(WILDCARD) -> x is Generic<*>

compiler/testData/diagnostics/testsWithStdLib/contracts/smartcasts/reifiedGeneric.fir.kt

@@ -0,0 +1,31 @@
+// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect +AllowReifiedGenericsInContracts
+// !USE_EXPERIMENTAL: kotlin.contracts.ExperimentalContracts
+// !DIAGNOSTICS: -INVISIBLE_REFERENCE -INVISIBLE_MEMBER -UNUSED_VARIABLE
+
+import kotlin.contracts.*
+
+inline fun <reified T> requireIsInstance(value: Any?) {
+    contract {
+        returns() implies (value is T)
+    }
+    if (value !is T) {
+        throw IllegalArgumentException()
+    }
+}
+
+inline fun <reified T> cast(value: Any?): T {
+    contract {
+        returns() implies (value is T)
+    }
+    return value as T
+}
+
+fun test_1(x: Any) {
+    requireIsInstance<String>(x)
+    x.<!UNRESOLVED_REFERENCE!>length<!>
+}
+
+fun test_2(x: Any) {
+    val s: String = cast(x)
+    x.<!UNRESOLVED_REFERENCE!>length<!>
+}

compiler/testData/diagnostics/testsWithStdLib/contracts/smartcasts/reifiedGeneric.kt

@@ -0,0 +1,31 @@
+// !LANGUAGE: +AllowContractsForCustomFunctions +UseReturnsEffect +AllowReifiedGenericsInContracts
+// !USE_EXPERIMENTAL: kotlin.contracts.ExperimentalContracts
+// !DIAGNOSTICS: -INVISIBLE_REFERENCE -INVISIBLE_MEMBER -UNUSED_VARIABLE
+
+import kotlin.contracts.*
+
+inline fun <reified T> requireIsInstance(value: Any?) {
+    contract {
+        returns() implies (value is T)
+    }
+    if (value !is T) {
+        throw IllegalArgumentException()
+    }
+}
+
+inline fun <reified T> cast(value: Any?): T {
+    contract {
+        returns() implies (value is T)
+    }
+    return value as T
+}
+
+fun test_1(x: Any) {
+    requireIsInstance<String>(x)
+    <!DEBUG_INFO_SMARTCAST!>x<!>.length
+}
+
+fun test_2(x: Any) {
+    val s: String = cast(x)
+    <!DEBUG_INFO_SMARTCAST!>x<!>.length
+}

compiler/testData/diagnostics/testsWithStdLib/contracts/smartcasts/reifiedGeneric.txt

@@ -0,0 +1,10 @@
+package
+
+public inline fun </*0*/ reified T> cast(/*0*/ value: kotlin.Any?): T
+    Returns(WILDCARD) -> value is T
+
+public inline fun </*0*/ reified T> requireIsInstance(/*0*/ value: kotlin.Any?): kotlin.Unit
+    Returns(WILDCARD) -> value is T
+
+public fun test_1(/*0*/ x: kotlin.Any): kotlin.Unit
+public fun test_2(/*0*/ x: kotlin.Any): kotlin.Unit