Add tests for obsolete issues

#KT-38092 Obsolete
 #KT-38179 Obsolete
 #KT-35105 Obsolete
 #KT-36696 Obsolete
 #KT-36947 Obsolete
 #KT-37337 Obsolete
 #KT-37309 Obsolete
 #KT-37727 Obsolete
 #KT-37735 Obsolete
 #KT-37853 Obsolete
 #KT-37920 Obsolete
 #KT-37709 Obsolete
 #KT-37706 Obsolete

compiler/testData/diagnostics/testsWithStdLib/regression/kt37706.fir.kt

@@ -0,0 +1,5 @@
+fun test(): Int {
+    val sets = (1..100).associateWith { (it..10 * it).mapTo(java.util.TreeSet()) { i -> i } }
+    val set = sets[50] ?: emptySet()
+    return set.<!UNRESOLVED_REFERENCE!>size<!>
+}

compiler/testData/diagnostics/testsWithStdLib/regression/kt37706.kt

@@ -0,0 +1,5 @@
+fun test(): Int {
+    val sets = (1..100).associateWith { (it..10 * it).mapTo(java.util.TreeSet()) { i -> i } }
+    val set = sets[50] ?: emptySet()
+    return set.size
+}

compiler/testData/diagnostics/testsWithStdLib/regression/kt37706.txt

@@ -0,0 +1,3 @@
+package
+
+public fun test(): kotlin.Int

compiler/testData/diagnostics/testsWithStdLib/regression/kt37727.fir.kt

@@ -0,0 +1,5 @@
+data class A(val x: Set<CLassNotFound> = setOf()) {
+    fun with(x: Set<CLassNotFound>? = null) {
+        A(x ?: this.x)
+    }
+}

compiler/testData/diagnostics/testsWithStdLib/regression/kt37727.kt

@@ -0,0 +1,5 @@
+data class A(val x: Set<<!UNRESOLVED_REFERENCE!>CLassNotFound<!>> = setOf()) {
+    fun with(x: Set<<!UNRESOLVED_REFERENCE!>CLassNotFound<!>>? = null) {
+        A(<!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>x<!> ?: this.<!DEBUG_INFO_ELEMENT_WITH_ERROR_TYPE!>x<!>)
+    }
+}

compiler/testData/diagnostics/testsWithStdLib/regression/kt37727.txt

@@ -0,0 +1,12 @@
+package
+
+public final data class A {
+    public constructor A(/*0*/ x: kotlin.collections.Set<[ERROR : CLassNotFound]> = ...)
+    public final val x: kotlin.collections.Set<[ERROR : CLassNotFound]>
+    public final operator /*synthesized*/ fun component1(): kotlin.collections.Set<[ERROR : CLassNotFound]>
+    public final /*synthesized*/ fun copy(/*0*/ x: kotlin.collections.Set<[ERROR : CLassNotFound]> = ...): A
+    public open override /*1*/ /*synthesized*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
+    public open override /*1*/ /*synthesized*/ fun hashCode(): kotlin.Int
+    public open override /*1*/ /*synthesized*/ fun toString(): kotlin.String
+    public final fun with(/*0*/ x: kotlin.collections.Set<[ERROR : CLassNotFound]>? = ...): kotlin.Unit
+}

compiler/testData/diagnostics/testsWithStdLib/regression/kt37735.kt

@@ -0,0 +1,24 @@
+// FIR_IDENTICAL
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+import java.net.URI
+
+fun <T> WebClient.myPost(uri: URI, body: Any, extract: WebClient.ResponseSpec.() -> Mono<T>): Mono<T> = TODO()
+
+class RestClient(private val webClient: WebClient) {
+    fun post(outDto: OutDto): Mono<InDto> =
+        webClient.myPost(URI("http:/localhost:8080"), outDto) { bodyToMono() }
+}
+
+class Mono<T>
+
+class WebClient {
+    fun post() {}
+
+    interface ResponseSpec {
+        fun <T> bodyToMono(): Mono<T>
+    }
+}
+
+class OutDto
+class InDto

compiler/testData/diagnostics/testsWithStdLib/regression/kt37735.txt

@@ -0,0 +1,48 @@
+package
+
+public fun </*0*/ T> WebClient.myPost(/*0*/ uri: java.net.URI, /*1*/ body: kotlin.Any, /*2*/ extract: WebClient.ResponseSpec.() -> Mono<T>): Mono<T>
+
+public final class InDto {
+    public constructor InDto()
+    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 Mono</*0*/ T> {
+    public constructor Mono</*0*/ 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 OutDto {
+    public constructor OutDto()
+    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 RestClient {
+    public constructor RestClient(/*0*/ webClient: WebClient)
+    private final val webClient: WebClient
+    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 fun post(/*0*/ outDto: OutDto): Mono<InDto>
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+}
+
+public final class WebClient {
+    public constructor WebClient()
+    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 fun post(): kotlin.Unit
+    public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
+
+    public interface ResponseSpec {
+        public abstract fun </*0*/ T> bodyToMono(): Mono<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
+    }
+}