[NI] Avoid building controversial systems by clipping extra constraints

#KT-23854 Fixed

compiler/testData/diagnostics/tests/inference/commonSystem/selectFromCovariantAndContravariantTypes.kt

@@ -0,0 +1,20 @@
+// !LANGUAGE: +NewInference
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+class In<in T>
+class Out<out T>
+
+class A
+class B
+
+fun <K> select(x: K, y: K): K = x
+fun <V> genericIn(x: In<V>) {}
+fun <V> genericOut(x: Out<V>) {}
+
+fun test1(a: In<A>, b: In<B>) {
+    genericIn(select(a, b))
+}
+
+fun test2(a: Out<A>, b: Out<B>) {
+    genericOut(select(a, b))
+}

compiler/testData/diagnostics/tests/inference/commonSystem/selectFromCovariantAndContravariantTypes.txt

@@ -0,0 +1,35 @@
+package
+
+public fun </*0*/ V> genericIn(/*0*/ x: In<V>): kotlin.Unit
+public fun </*0*/ V> genericOut(/*0*/ x: Out<V>): kotlin.Unit
+public fun </*0*/ K> select(/*0*/ x: K, /*1*/ y: K): K
+public fun test1(/*0*/ a: In<A>, /*1*/ b: In<B>): kotlin.Unit
+public fun test2(/*0*/ a: Out<A>, /*1*/ b: Out<B>): kotlin.Unit
+
+public final class A {
+    public constructor A()
+    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 open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class B {
+    public constructor B()
+    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 open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class In</*0*/ in T> {
+    public constructor In</*0*/ in T>()
+    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 open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class Out</*0*/ out T> {
+    public constructor Out</*0*/ out T>()
+    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 open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}

compiler/testData/diagnostics/tests/inference/commonSystem/selectFromTwoIncompatibleTypes.kt

@@ -10,16 +10,15 @@ fun <K> select(x: K, y: K): K = x
 fun <V> generic(x: Inv<V>) {}
 
 fun test1(a: Inv<A>, b: Inv<B>) {
-    generic(<!TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH!>select(<!TYPE_MISMATCH, TYPE_MISMATCH!>a<!>, b)<!>)
+    generic(select(a, b))
 }
 
 fun test2(a: Inv<*>?, b: Inv<*>) {
-    generic(<!TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH!>a ?: b<!>)
-    generic(<!TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH!>if (a != null) <!DEBUG_INFO_SMARTCAST!>a<!> else b<!>)
+    generic(a ?: b)
+    generic(if (a != null) <!DEBUG_INFO_SMARTCAST!>a<!> else b)
     generic(a!!)
 }
 
 fun test3(a: Inv<out Any>, b: Inv<out Any>) {
-    generic(<!TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH!>select(a, b)<!>)
+    generic(select(a, b))
 }
-

compiler/testData/diagnostics/tests/inference/commonSystem/selectIntegerValueTypeFromIf.kt

@@ -0,0 +1,8 @@
+// !LANGUAGE: +NewInference
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+fun takeLong(i: Long) {}
+
+fun test() {
+    takeLong(if (true) 1 else 0)
+}

compiler/testData/diagnostics/tests/inference/commonSystem/selectIntegerValueTypeFromIf.txt

@@ -0,0 +1,4 @@
+package
+
+public fun takeLong(/*0*/ i: kotlin.Long): kotlin.Unit
+public fun test(): kotlin.Unit