Load additional JDK functions into built-ins member scope

#KT-5990 Fixed
 #KT-7127 Fixed
 #KT-10370 Fixed

core/deserialization/src/org/jetbrains/kotlin/serialization/deserialization/AdditionalClassPartsProvider.kt

@@ -16,13 +16,19 @@
 
 package org.jetbrains.kotlin.serialization.deserialization
 
+import org.jetbrains.kotlin.descriptors.SimpleFunctionDescriptor
+import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedClassDescriptor
 import org.jetbrains.kotlin.types.KotlinType
 
 interface AdditionalClassPartsProvider {
     fun getSupertypes(classDescriptor: DeserializedClassDescriptor): Collection<KotlinType>
+    fun getFunctions(name: Name, classDescriptor: DeserializedClassDescriptor): Collection<SimpleFunctionDescriptor>
+    fun getFunctionsNames(classDescriptor: DeserializedClassDescriptor): Collection<Name>
 
     object None : AdditionalClassPartsProvider {
         override fun getSupertypes(classDescriptor: DeserializedClassDescriptor): Collection<KotlinType> = emptyList()
+        override fun getFunctions(name: Name, classDescriptor: DeserializedClassDescriptor): Collection<SimpleFunctionDescriptor> = emptyList()
+        override fun getFunctionsNames(classDescriptor: DeserializedClassDescriptor): Collection<Name> = emptyList()
     }
 }

core/deserialization/src/org/jetbrains/kotlin/serialization/deserialization/descriptors/DeserializedClassDescriptor.kt

@@ -199,6 +199,8 @@ class DeserializedClassDescriptor(
             for (supertype in classDescriptor.getTypeConstructor().supertypes) {
                 fromSupertypes.addAll(supertype.memberScope.getContributedFunctions(name, NoLookupLocation.FOR_ALREADY_TRACKED))
             }
+
+            functions.addAll(c.components.additionalClassPartsProvider.getFunctions(name, this@DeserializedClassDescriptor))
             generateFakeOverrides(name, fromSupertypes, functions)
         }
 
@@ -229,7 +231,7 @@ class DeserializedClassDescriptor(
         override fun getNonDeclaredFunctionNames(location: LookupLocation): Set<Name> {
             return classDescriptor.typeConstructor.supertypes.flatMapTo(LinkedHashSet()) {
                 it.memberScope.getContributedDescriptors().filterIsInstance<SimpleFunctionDescriptor>().map { it.name }
-            }
+            } + c.components.additionalClassPartsProvider.getFunctionsNames(this@DeserializedClassDescriptor)
         }
 
         override fun getNonDeclaredVariableNames(location: LookupLocation): Set<Name> {