[NI] Test data to understand changes in the next commit

##KT-31969 In Progress

compiler/testData/diagnostics/tests/inference/commonSystem/kt31969.kt

@@ -0,0 +1,12 @@
+// !DIAGNOSTICS: -UNUSED_VARIABLE
+// !WITH_NEW_INFERENCE
+
+open class View
+
+fun test() {
+    val target = foo<View>() ?: foo() <!NI;USELESS_ELVIS!>?: run {}<!>
+}
+
+fun <T : View> foo(): T? {
+    return null
+}

compiler/testData/diagnostics/tests/inference/commonSystem/kt31969.txt

@@ -0,0 +1,11 @@
+package
+
+public fun </*0*/ T : View> foo(): T?
+public fun test(): kotlin.Unit
+
+public open class View {
+    public constructor View()
+    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/postponedCompletionWithExactAnnotation.kt

@@ -0,0 +1,27 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+interface ISample
+
+fun <K> elvisSimple(x: K?, y: K): K = y
+
+@Suppress("INVISIBLE_REFERENCE")
+fun <K> elvisExact(x: K?, y: K): @kotlin.internal.Exact K = y
+
+fun <T : Number> materialize(): T? = TODO()
+
+fun test(nullableSample: ISample, any: Any) {
+    <!DEBUG_INFO_EXPRESSION_TYPE("ISample")!>elvisSimple(
+        nullableSample,
+        <!TYPE_INFERENCE_CONFLICTING_SUBSTITUTIONS!>materialize<!>()
+    )<!>
+
+    elvisSimple(
+        <!DEBUG_INFO_EXPRESSION_TYPE("ISample")!>elvisSimple(nullableSample, <!TYPE_INFERENCE_CONFLICTING_SUBSTITUTIONS!>materialize<!>())<!>,
+        any
+    )
+
+    elvisSimple(
+        <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Any?")!>elvisExact(nullableSample, materialize())<!>,
+        any
+    )
+}

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

@@ -0,0 +1,12 @@
+package
+
+@kotlin.Suppress(names = {"INVISIBLE_REFERENCE"}) public fun </*0*/ K> elvisExact(/*0*/ x: K?, /*1*/ y: K): K
+public fun </*0*/ K> elvisSimple(/*0*/ x: K?, /*1*/ y: K): K
+public fun </*0*/ T : kotlin.Number> materialize(): T?
+public fun test(/*0*/ nullableSample: ISample, /*1*/ any: kotlin.Any): kotlin.Unit
+
+public interface ISample {
+    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/postponedCompletionWithExactAnnotation_ni.kt

@@ -0,0 +1,28 @@
+// !LANGUAGE: +NewInference
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+interface ISample
+
+fun <K> elvisSimple(x: K?, y: K): K = y
+
+@Suppress("INVISIBLE_REFERENCE")
+fun <K> elvisExact(x: K?, y: K): @kotlin.internal.Exact K = y
+
+fun <T : Number> materialize(): T? = null
+
+fun test(nullableSample: ISample, any: Any) {
+    <!DEBUG_INFO_EXPRESSION_TYPE("ISample")!>elvisSimple(
+        nullableSample,
+        <!DEBUG_INFO_EXPRESSION_TYPE("{ISample & Number}?")!>materialize()<!>
+    )<!>
+
+    elvisSimple(
+        <!DEBUG_INFO_EXPRESSION_TYPE("ISample")!>elvisSimple(nullableSample, materialize())<!>,
+        any
+    )
+
+    elvisSimple(
+        <!DEBUG_INFO_EXPRESSION_TYPE("ISample")!>elvisExact(nullableSample, materialize())<!>,
+        any
+    )
+}

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

@@ -0,0 +1,12 @@
+package
+
+@kotlin.Suppress(names = {"INVISIBLE_REFERENCE"}) public fun </*0*/ K> elvisExact(/*0*/ x: K?, /*1*/ y: K): K
+public fun </*0*/ K> elvisSimple(/*0*/ x: K?, /*1*/ y: K): K
+public fun </*0*/ T : kotlin.Number> materialize(): T?
+public fun test(/*0*/ nullableSample: ISample, /*1*/ any: kotlin.Any): kotlin.Unit
+
+public interface ISample {
+    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
+}