Removes dartc reliance on its own libraries, now can be targeted at any implementation's libraries

compiler/java/com/google/dart/compiler/CommandLineOptions.java

Index: compiler/java/com/google/dart/compiler/CommandLineOptions.java
diff --git a/compiler/java/com/google/dart/compiler/CommandLineOptions.java b/compiler/java/com/google/dart/compiler/CommandLineOptions.java
index 3a4dea3c931e29e0d8fc695df1360648e11d132c..cdc7394515d03a25c9e2f74ad01e959a6680b77f 100644
--- a/compiler/java/com/google/dart/compiler/CommandLineOptions.java
+++ b/compiler/java/com/google/dart/compiler/CommandLineOptions.java
@@ -79,8 +79,7 @@ public class CommandLineOptions {
     usage = "Enable incremental compilation")
     private boolean incremental = false;
 
-    // TODO(zundel): -out is for backward compatibility until scripts are updated
-    @Option(name = "--work", aliases = { "-out" },
+    @Option(name = "--work",
         usage = "Directory to receive compiler output\n for future incremental builds")
     private File workDirectory = new File("out");
 
@@ -104,6 +103,17 @@ public class CommandLineOptions {
         usage = "Treat non-type warnings as fatal")
     private boolean warningsAreFatal = false;
 
+    @Option(name = "--implementation-name",
+        usage = "Implementation to analyze (e.g. dartium, vm, dart2js, frog)")
+    private String implementationName = SystemLibraryManager.DEFAULT_IMPLEMENTATION;
+
+    @Option(name = "--dart-sdk",
+        usage = "Path to dart sdk.  (system property com.google.dart.sdk)")
+    private String dartSdkPath = SystemLibraryManager.DEFAULT_SDK_PATH;
+    
+    @Option(name = "--show-sdk-warnings", usage = "show warnings from SDK source")
+    private boolean showSdkWarnings = false;
+
     @Argument
     private final List<String> sourceFiles = new ArrayList<String>();
 
@@ -121,6 +131,21 @@ public class CommandLineOptions {
       return jvmMetricDetail + ":" + jvmMetricFormat + ":" + jvmMetricType;
     }
 
+    public String getImplementationName() {
+      return implementationName;
+    }
+
+    public String getDartSdkPath() {
+      return dartSdkPath;
+    }
+
+    /**
+     * Returns whether warnings from SDK files should be suppressed.
+     */
+    public boolean suppressSdkWarnings() {
+      return !showSdkWarnings;
+    }
+    
     /**
      * Returns the list of files passed to the compiler.
      */