Rename Compat210Component into CompatComponent.

Nowadays, it contains as much compatibility tricks for 2.11/2.12
as for 2.10.

Author: sjrd

compiler/src/main/scala/org/scalajs/core/compiler/Compat210Component.scala renamed to compiler/src/main/scala/org/scalajs/core/compiler/CompatComponent.scala

@@ -10,13 +10,15 @@ import scala.collection.mutable
 import scala.reflect.internal.Flags.{LOCAL, PRIVATE}
 import scala.tools.nsc._
 
-/** Hacks to have our source code compatible with 2.10 and 2.11.
- *  It exposes 2.11 API in a 2.10 compiler.
+/** Hacks to have our source code compatible with the compiler internals of all
+ *  the versions of Scala that we support.
+ *
+ *  In general, it tries to provide the newer APIs on top of older APIs.
  *
  *  @author Sébastien Doeraene
  */
-trait Compat210Component {
-  import Compat210Component.{infiniteLoop, noImplClasses}
+trait CompatComponent {
+  import CompatComponent.{infiniteLoop, noImplClasses}
 
   val global: Global
 
@@ -52,7 +54,7 @@ trait Compat210Component {
   }
 
   implicit final class GlobalCompat(
-      self: Compat210Component.this.global.type) {
+      self: CompatComponent.this.global.type) {
 
     def enteringPhase[T](ph: Phase)(op: => T): T = self.beforePhase(ph)(op)
     def beforePhase[T](ph: Phase)(op: => T): T = infiniteLoop()
@@ -224,7 +226,7 @@ trait Compat210Component {
     global.definitions.isFunctionSymbol(sym)
 
   private implicit final class DefinitionsCompat(
-      self: Compat210Component.this.global.definitions.type) {
+      self: CompatComponent.this.global.definitions.type) {
 
     def repeatedToSingle(t: Type): Type = t match {
       case TypeRef(_, self.RepeatedParamClass, arg :: Nil) => arg
@@ -240,20 +242,20 @@ trait Compat210Component {
   // that were previously in definitions itself
 
   implicit final class RunCompat(self: Run) {
-    val runDefinitions: Compat210Component.this.global.definitions.type =
+    val runDefinitions: CompatComponent.this.global.definitions.type =
       global.definitions
   }
 
   // Mode.FUNmode replaces analyzer.FUNmode
 
   object Mode {
-    import Compat210Component.AnalyzerCompat
+    import CompatComponent.AnalyzerCompat
     // No type ascription! Type is different in 2.10 / 2.11
     val FUNmode = analyzer.FUNmode
   }
 }
 
-object Compat210Component {
+object CompatComponent {
   private object LowPriorityMode {
     object Mode {
       def FUNmode: Nothing = infiniteLoop()
@@ -262,7 +264,7 @@ object Compat210Component {
 
   private implicit final class AnalyzerCompat(self: scala.tools.nsc.typechecker.Analyzer) {
     def FUNmode = { // scalastyle:ignore
-      import Compat210Component.LowPriorityMode._
+      import CompatComponent.LowPriorityMode._
       {
         import scala.reflect.internal._
         Mode.FUNmode
@@ -277,7 +279,7 @@ object Compat210Component {
     throw new AssertionError("No impl classes in this version")
 }
 
-trait PluginComponent210Compat extends Compat210Component {
+trait PluginComponentCompat extends CompatComponent {
   // Starting 2.11.x, we need to override the default description.
   def description: String
 }

compiler/src/main/scala/org/scalajs/core/compiler/ExplicitInnerJS.scala

@@ -48,7 +48,7 @@ import scala.collection.mutable
  */
 abstract class ExplicitInnerJS
     extends plugins.PluginComponent with InfoTransform with TypingTransformers
-    with PluginComponent210Compat {
+    with PluginComponentCompat {
 
   val jsAddons: JSGlobalAddons {
     val global: ExplicitInnerJS.this.global.type

compiler/src/main/scala/org/scalajs/core/compiler/ExplicitLocalJS.scala

@@ -111,7 +111,7 @@ import scala.collection.mutable
  */
 abstract class ExplicitLocalJS
     extends plugins.PluginComponent with Transform with TypingTransformers
-    with PluginComponent210Compat {
+    with PluginComponentCompat {
 
   val jsAddons: JSGlobalAddons {
     val global: ExplicitLocalJS.this.global.type

compiler/src/main/scala/org/scalajs/core/compiler/GenJSCode.scala

@@ -33,7 +33,7 @@ abstract class GenJSCode extends plugins.PluginComponent
                             with JSEncoding
                             with GenJSExports
                             with GenJSFiles
-                            with PluginComponent210Compat {
+                            with PluginComponentCompat {
 
   val jsAddons: JSGlobalAddons {
     val global: GenJSCode.this.global.type

compiler/src/main/scala/org/scalajs/core/compiler/JSGlobalAddons.scala

@@ -16,7 +16,7 @@ import org.scalajs.core.ir.Trees.JSNativeLoadSpec
  *  @author Sébastien Doeraene
  */
 trait JSGlobalAddons extends JSDefinitions
-                        with Compat210Component {
+                        with CompatComponent {
   val global: Global
 
   import global._

compiler/src/main/scala/org/scalajs/core/compiler/PreTyperComponent.scala

@@ -61,7 +61,7 @@ import nsc._
  *  @author Nicolas Stucki
  */
 abstract class PreTyperComponent extends plugins.PluginComponent
-    with transform.Transform with PluginComponent210Compat {
+    with transform.Transform with PluginComponentCompat {
 
   import global._
 

compiler/src/main/scala/org/scalajs/core/compiler/PrepJSInterop.scala

@@ -28,7 +28,7 @@ import org.scalajs.core.ir.Trees.{isValidIdentifier, JSNativeLoadSpec}
 abstract class PrepJSInterop extends plugins.PluginComponent
                                 with PrepJSExports
                                 with transform.Transform
-                                with PluginComponent210Compat {
+                                with PluginComponentCompat {
   import PrepJSInterop._
 
   val jsAddons: JSGlobalAddons {

compiler/src/main/scala/org/scalajs/core/compiler/ScalaJSPlugin.scala

@@ -39,7 +39,7 @@ class ScalaJSPlugin(val global: Global) extends NscPlugin {
   /** Addons for JavaScript platform */
   object jsAddons extends {
     val global: ScalaJSPlugin.this.global.type = ScalaJSPlugin.this.global
-  } with JSGlobalAddons with Compat210Component
+  } with JSGlobalAddons with CompatComponent
 
   object scalaJSOpts extends ScalaJSOptions {
     import ScalaJSOptions.URIMap