Extract javac-wrapper into a separate module

It was actually a separate module before the grand build refactoring in
61dfb75e0e.

build.gradle.kts

@@ -232,6 +232,7 @@ extra["compilerModules"] = arrayOf(
     ":compiler:backend",
     ":compiler:plugin-api",
     ":compiler:light-classes",
+    ":compiler:javac-wrapper",
     ":compiler:cli",
     ":compiler:cli-js",
     ":compiler:incremental-compilation-impl",

compiler/cli/build.gradle.kts

@@ -15,6 +15,7 @@ dependencies {
     compile(project(":compiler:light-classes"))
     compile(project(":compiler:serialization"))
     compile(project(":compiler:plugin-api"))
+    compile(project(":compiler:javac-wrapper"))
     compile(project(":js:js.translator"))
     compile(project(":native:frontend.native"))
     compile(commonDep("org.fusesource.jansi", "jansi"))
@@ -42,8 +43,7 @@ dependencies {
 sourceSets {
     "main" {
         projectDefault()
-        java.srcDirs("../builtins-serializer/src",
-                     "../javac-wrapper/src")
+        java.srcDirs("../builtins-serializer/src")
     }
     "test" { }
 }

compiler/javac-wrapper/build.gradle.kts

@@ -0,0 +1,20 @@
+plugins {
+    kotlin("jvm")
+    id("jps-compatible")
+}
+
+dependencies {
+    compile(project(":compiler:util"))
+    compile(project(":compiler:frontend.java"))
+
+    compileOnly(toolsJarApi())
+    compileOnly(intellijCoreDep()) { includeJars("intellij-core") }
+    compileOnly(intellijDep()) { includeIntellijCoreJarDependencies(project) }
+}
+
+sourceSets {
+    "main" {
+        projectDefault()
+    }
+    "test" { }
+}

compiler/javac-wrapper/src/org/jetbrains/kotlin/javac/JavacWrapper.kt

@@ -34,16 +34,19 @@ import com.sun.tools.javac.model.JavacElements
 import com.sun.tools.javac.model.JavacTypes
 import com.sun.tools.javac.tree.JCTree
 import com.sun.tools.javac.util.*
-import org.jetbrains.kotlin.cli.jvm.compiler.JvmPackagePartProvider
 import org.jetbrains.kotlin.javac.resolve.ClassifierResolver
 import org.jetbrains.kotlin.javac.resolve.IdentifierResolver
 import org.jetbrains.kotlin.javac.resolve.KotlinClassifiersCache
 import org.jetbrains.kotlin.javac.resolve.classId
 import org.jetbrains.kotlin.javac.wrappers.symbols.*
-import org.jetbrains.kotlin.javac.wrappers.trees.*
+import org.jetbrains.kotlin.javac.wrappers.trees.TreeBasedClass
+import org.jetbrains.kotlin.javac.wrappers.trees.TreeBasedPackage
 import org.jetbrains.kotlin.load.java.structure.*
-import org.jetbrains.kotlin.name.*
+import org.jetbrains.kotlin.load.kotlin.PackagePartProvider
+import org.jetbrains.kotlin.name.ClassId
+import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name
+import org.jetbrains.kotlin.name.isSubpackageOf
 import org.jetbrains.kotlin.psi.KtFile
 import java.io.Closeable
 import java.io.File
@@ -62,7 +65,7 @@ class JavacWrapper(
     bootClasspath: List<File>?,
     sourcePath: List<File>?,
     val kotlinResolver: JavacWrapperKotlinResolver,
-    private val packagePartsProviders: List<JvmPackagePartProvider>,
+    private val packagePartsProviders: List<PackagePartProvider>,
     private val compileJava: Boolean,
     private val outputDirectory: File?,
     private val context: Context

settings.gradle

@@ -112,6 +112,7 @@ include ":kotlin-build-common",
         ":compiler:backend",
         ":compiler:plugin-api",
         ":compiler:light-classes",
+        ":compiler:javac-wrapper",
         ":compiler:cli",
         ":compiler:cli-js",
         ":compiler:cli-js-klib",