Revert "Remove obsolete bc.frontend module"

This reverts commit b48a42a5

kotlin-native/backend.native/bc.frontend/bc.frontend.iml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="KotlinJavaRuntime (3)" level="project" />
+    <orderEntry type="module" module-name="frontend" />
+  </component>
+</module>

kotlin-native/backend.native/build.gradle

@@ -43,6 +43,10 @@ sourceSets {
         java.srcDir 'cli.bc/src'
         kotlin.srcDir 'cli.bc/src'
     }
+    bc_frontend {
+        java.srcDir 'bc.frontend/src'
+        kotlin.srcDir 'bc.frontend/src'
+    }
 }
 
 compileCompilerKotlin {
@@ -198,11 +202,13 @@ dependencies {
 
     cli_bcCompile sourceSets.compiler.output
 
+    bc_frontendCompile project(kotlinCompilerModule)
+
     cli_bc sourceSets.cli_bc.output
 }
 
 
-classes.dependsOn 'compilerClasses', 'cli_bcClasses'
+classes.dependsOn 'compilerClasses', 'cli_bcClasses', 'bc_frontendClasses'
 
 
 // These are just a couple of aliases