Remove unnecessary copy of ReflectionTypes

ReflectionTypes was copied from org.jetbrains.kotlin.builtins to
kotlin-native in
https://github.com/JetBrains/kotlin-native/commit/776f4c4b7, and then
was incorrectly copied back in 27365dc4be. This class is in fact only
needed in kotlin-native, where it was moved and simplified in
https://github.com/JetBrains/kotlin-native/commit/c3e921d53

compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/CommonBackendContext.kt

@@ -1,28 +1,18 @@
+/*
+ * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
 package org.jetbrains.kotlin.backend.common
 
 import org.jetbrains.kotlin.backend.common.ir.Ir
-import org.jetbrains.kotlin.builtins.KOTLIN_REFLECT_FQ_NAME
 import org.jetbrains.kotlin.descriptors.ClassDescriptor
 import org.jetbrains.kotlin.descriptors.FunctionDescriptor
-import org.jetbrains.kotlin.descriptors.ModuleDescriptor
-import org.jetbrains.kotlin.descriptors.annotations.Annotations
-import org.jetbrains.kotlin.incremental.components.NoLookupLocation
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.declarations.IrFile
 import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.name.Name
-import org.jetbrains.kotlin.resolve.scopes.MemberScope
-import org.jetbrains.kotlin.types.KotlinType
-import org.jetbrains.kotlin.types.KotlinTypeFactory
-import org.jetbrains.kotlin.types.TypeProjection
-import org.jetbrains.kotlin.types.typeUtil.asTypeProjection
-import org.jetbrains.kotlin.utils.addIfNotNull
-import java.util.*
-import kotlin.reflect.KProperty
-
 
 interface CommonBackendContext : BackendContext {
-
     override val ir: Ir<CommonBackendContext>
 
     //TODO move to builtins
@@ -33,77 +23,7 @@ interface CommonBackendContext : BackendContext {
     //TODO move to builtins
     fun getInternalFunctions(name: String): List<FunctionDescriptor>
 
-    val reflectionTypes: ReflectionTypes
-
     fun log(message: () -> String)
 
     fun report(element: IrElement?, irFile: IrFile?, message: String, isError: Boolean)
 }
-
-class ReflectionTypes(module: ModuleDescriptor, internalPackage: FqName) {
-
-    private val kotlinReflectScope: MemberScope by lazy(LazyThreadSafetyMode.PUBLICATION) {
-        module.getPackage(KOTLIN_REFLECT_FQ_NAME).memberScope
-    }
-
-    private val internalScope: MemberScope by lazy(LazyThreadSafetyMode.PUBLICATION) {
-        module.getPackage(internalPackage).memberScope
-    }
-
-    private fun find(memberScope: MemberScope, className: String): ClassDescriptor {
-        val name = Name.identifier(className)
-        return memberScope.getContributedClassifier(name, NoLookupLocation.FROM_REFLECTION) as ClassDescriptor
-    }
-
-    private class ClassLookup(val memberScope: MemberScope) {
-        operator fun getValue(types: ReflectionTypes, property: KProperty<*>): ClassDescriptor {
-            return types.find(memberScope, property.name.capitalize())
-        }
-    }
-
-    private fun getFunctionTypeArgumentProjections(
-            receiverType: KotlinType?,
-            parameterTypes: List<KotlinType>,
-            returnType: KotlinType
-    ): List<TypeProjection> {
-        val arguments = ArrayList<TypeProjection>(parameterTypes.size + (if (receiverType != null) 1 else 0) + 1)
-
-        arguments.addIfNotNull(receiverType?.asTypeProjection())
-
-        parameterTypes.mapTo(arguments, KotlinType::asTypeProjection)
-
-        arguments.add(returnType.asTypeProjection())
-
-        return arguments
-    }
-
-    fun getKFunction(n: Int): ClassDescriptor = find(kotlinReflectScope, "KFunction$n")
-
-    val kClass: ClassDescriptor by ClassLookup(kotlinReflectScope)
-    val kProperty0: ClassDescriptor by ClassLookup(kotlinReflectScope)
-    val kProperty1: ClassDescriptor by ClassLookup(kotlinReflectScope)
-    val kProperty2: ClassDescriptor by ClassLookup(kotlinReflectScope)
-    val kMutableProperty0: ClassDescriptor by ClassLookup(kotlinReflectScope)
-    val kMutableProperty1: ClassDescriptor by ClassLookup(kotlinReflectScope)
-    val kMutableProperty2: ClassDescriptor by ClassLookup(kotlinReflectScope)
-    val kFunctionImpl: ClassDescriptor by ClassLookup(internalScope)
-    val kProperty0Impl: ClassDescriptor by ClassLookup(internalScope)
-    val kProperty1Impl: ClassDescriptor by ClassLookup(internalScope)
-    val kProperty2Impl: ClassDescriptor by ClassLookup(internalScope)
-    val kMutableProperty0Impl: ClassDescriptor by ClassLookup(internalScope)
-    val kMutableProperty1Impl: ClassDescriptor by ClassLookup(internalScope)
-    val kMutableProperty2Impl: ClassDescriptor by ClassLookup(internalScope)
-    val kLocalDelegatedPropertyImpl: ClassDescriptor by ClassLookup(internalScope)
-    val kLocalDelegatedMutablePropertyImpl: ClassDescriptor by ClassLookup(internalScope)
-
-    fun getKFunctionType(
-            annotations: Annotations,
-            receiverType: KotlinType?,
-            parameterTypes: List<KotlinType>,
-            returnType: KotlinType
-    ): KotlinType {
-        val arguments = getFunctionTypeArgumentProjections(receiverType, parameterTypes, returnType)
-        val classDescriptor = getKFunction(arguments.size - 1 /* return type */)
-        return KotlinTypeFactory.simpleNotNullType(annotations, classDescriptor, arguments)
-    }
-}

compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsIrBackendContext.kt

@@ -6,7 +6,6 @@
 package org.jetbrains.kotlin.ir.backend.js
 
 import org.jetbrains.kotlin.backend.common.CommonBackendContext
-import org.jetbrains.kotlin.backend.common.ReflectionTypes
 import org.jetbrains.kotlin.backend.common.atMostOne
 import org.jetbrains.kotlin.backend.common.descriptors.KnownPackageFragmentDescriptor
 import org.jetbrains.kotlin.backend.common.ir.Ir
@@ -78,10 +77,6 @@ class JsIrBackendContext(
     override val sharedVariablesManager =
         JsSharedVariablesManager(irBuiltIns, implicitDeclarationFile)
     override val declarationFactory = JsDeclarationFactory()
-    override val reflectionTypes: ReflectionTypes by lazy(LazyThreadSafetyMode.PUBLICATION) {
-        // TODO
-        ReflectionTypes(module, REFLECT_PACKAGE_FQNAME)
-    }
 
     companion object {
         val KOTLIN_PACKAGE_FQN = FqName.fromSegments(listOf("kotlin"))
@@ -149,10 +144,6 @@ class JsIrBackendContext(
 
     val functions = (0..22).map { symbolTable.referenceClass(builtIns.getFunction(it)) }
 
-    val kFunctions by lazy {
-        (0..22).map { symbolTable.referenceClass(reflectionTypes.getKFunction(it)) }
-    }
-
     val primitiveCompanionObjects = PrimitiveType.NUMBER_TYPES
         .asSequence()
         .filter { it.name != "LONG" && it.name != "CHAR" } // skip due to they have own explicit companions

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/JvmBackendContext.kt

@@ -6,14 +6,15 @@
 package org.jetbrains.kotlin.backend.jvm
 
 import org.jetbrains.kotlin.backend.common.CommonBackendContext
-import org.jetbrains.kotlin.backend.common.ReflectionTypes
 import org.jetbrains.kotlin.backend.common.ir.Ir
 import org.jetbrains.kotlin.backend.common.ir.Symbols
 import org.jetbrains.kotlin.backend.jvm.descriptors.JvmDeclarationFactory
 import org.jetbrains.kotlin.backend.jvm.descriptors.JvmSharedVariablesManager
+import org.jetbrains.kotlin.builtins.ReflectionTypes
 import org.jetbrains.kotlin.codegen.state.GenerationState
 import org.jetbrains.kotlin.descriptors.ClassDescriptor
 import org.jetbrains.kotlin.descriptors.FunctionDescriptor
+import org.jetbrains.kotlin.descriptors.NotFoundClasses
 import org.jetbrains.kotlin.incremental.components.NoLookupLocation
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.declarations.IrFile
@@ -26,6 +27,7 @@ import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.psi2ir.PsiSourceManager
 import org.jetbrains.kotlin.resolve.scopes.MemberScope
+import org.jetbrains.kotlin.storage.LockBasedStorageManager
 
 class JvmBackendContext(
     val state: GenerationState,
@@ -37,9 +39,8 @@ class JvmBackendContext(
     override val declarationFactory: JvmDeclarationFactory = JvmDeclarationFactory(psiSourceManager, builtIns, state, symbolTable)
     override val sharedVariablesManager = JvmSharedVariablesManager(builtIns, irBuiltIns)
 
-    override val reflectionTypes: ReflectionTypes by lazy(LazyThreadSafetyMode.PUBLICATION) {
-        ReflectionTypes(state.module, FqName("kotlin.reflect.jvm.internal"))
-    }
+    // TODO: inject a correct StorageManager instance, or store NotFoundClasses inside ModuleDescriptor
+    internal val reflectionTypes = ReflectionTypes(state.module, NotFoundClasses(LockBasedStorageManager.NO_LOCKS, state.module))
 
     override val ir = JvmIr(irModuleFragment, symbolTable)