Drop ModuleDescriptor.sourceKind, move this code to IDE modules

This information is only used in IDE and it can easily be computed there

core/descriptors/src/org/jetbrains/kotlin/descriptors/ModuleDescriptor.kt

@@ -26,8 +26,6 @@ interface ModuleDescriptor : DeclarationDescriptor {
 
     val builtIns: KotlinBuiltIns
 
-    val sourceKind: SourceKind
-
     fun shouldSeeInternalsOf(targetModule: ModuleDescriptor): Boolean
 
     override fun substitute(substitutor: TypeSubstitutor): ModuleDescriptor {

core/descriptors/src/org/jetbrains/kotlin/descriptors/SourceKind.kt

@@ -1,23 +0,0 @@
-/*
- * Copyright 2010-2016 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.jetbrains.kotlin.descriptors
-
-enum class SourceKind {
-    NONE,
-    PRODUCTION,
-    TEST
-}

core/descriptors/src/org/jetbrains/kotlin/descriptors/impl/ModuleDescriptorImpl.kt

@@ -17,12 +17,13 @@
 package org.jetbrains.kotlin.descriptors.impl
 
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
-import org.jetbrains.kotlin.descriptors.*
+import org.jetbrains.kotlin.descriptors.ModuleDescriptor
+import org.jetbrains.kotlin.descriptors.PackageFragmentProvider
+import org.jetbrains.kotlin.descriptors.PackageViewDescriptor
 import org.jetbrains.kotlin.descriptors.annotations.Annotations
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.resolve.MultiTargetPlatform
-import org.jetbrains.kotlin.resolve.getMultiTargetPlatform
 import org.jetbrains.kotlin.storage.StorageManager
 import org.jetbrains.kotlin.utils.sure
 import java.lang.IllegalArgumentException
@@ -33,7 +34,6 @@ class ModuleDescriptorImpl @JvmOverloads constructor(
         override val builtIns: KotlinBuiltIns,
         // May be null in compiler context, should be not-null in IDE context
         multiTargetPlatform: MultiTargetPlatform? = null,
-        override val sourceKind: SourceKind = SourceKind.NONE,
         capabilities: Map<ModuleDescriptor.Capability<*>, Any?> = emptyMap()
 ) : DeclarationDescriptorImpl(Annotations.EMPTY, moduleName), ModuleDescriptor {
     init {

core/descriptors/src/org/jetbrains/kotlin/types/ErrorUtils.java

@@ -46,16 +46,10 @@ import static kotlin.collections.CollectionsKt.emptyList;
 import static kotlin.collections.CollectionsKt.joinToString;
 
 public class ErrorUtils {
-
     private static final ModuleDescriptor ERROR_MODULE;
+
     static {
         ERROR_MODULE = new ModuleDescriptor() {
-            @NotNull
-            @Override
-            public SourceKind getSourceKind() {
-                return SourceKind.NONE;
-            }
-
             @Nullable
             @Override
             public <T> T getCapability(@NotNull Capability<T> capability) {