Issue 3531. Don't allow using built-in identifier as import prefix

compiler/java/com/google/dart/compiler/resolver/TopLevelElementBuilder.java

Index: compiler/java/com/google/dart/compiler/resolver/TopLevelElementBuilder.java
diff --git a/compiler/java/com/google/dart/compiler/resolver/TopLevelElementBuilder.java b/compiler/java/com/google/dart/compiler/resolver/TopLevelElementBuilder.java
index 07abae93c7bc0f9659ce7f98e092a570ae91b643..ceaa58e9aa741bcd98cb195b98f65ed89ce573ed 100644
--- a/compiler/java/com/google/dart/compiler/resolver/TopLevelElementBuilder.java
+++ b/compiler/java/com/google/dart/compiler/resolver/TopLevelElementBuilder.java
@@ -16,13 +16,17 @@ import com.google.dart.compiler.ast.DartField;
 import com.google.dart.compiler.ast.DartFieldDefinition;
 import com.google.dart.compiler.ast.DartFunctionTypeAlias;
 import com.google.dart.compiler.ast.DartIdentifier;
+import com.google.dart.compiler.ast.DartImportDirective;
 import com.google.dart.compiler.ast.DartMethodDefinition;
 import com.google.dart.compiler.ast.DartNode;
+import com.google.dart.compiler.ast.DartStringLiteral;
 import com.google.dart.compiler.ast.DartTypeParameter;
 import com.google.dart.compiler.ast.DartUnit;
+import com.google.dart.compiler.ast.LibraryNode;
 import com.google.dart.compiler.ast.LibraryUnit;
 import com.google.dart.compiler.ast.Modifiers;
 import com.google.dart.compiler.common.SourceInfo;
+import com.google.dart.compiler.parser.DartParser;
 import com.google.dart.compiler.type.Type;
 import com.google.dart.compiler.type.TypeVariable;
 import com.google.dart.compiler.type.Types;
@@ -63,7 +67,7 @@ public class TopLevelElementBuilder {
     Scope importScope = library.getElement().getImportScope();
     Scope scope = library.getElement().getScope();
     assert scope.getElements().isEmpty();
-
+    

[Brian Wilkerson, 2012/06/12 15:20:02]

nit: trailing whitespace

[scheglov, 2012/06/12 18:04:22]

Done.

     Map<String, LibraryPrefixElement> libraryPrefixElements = Maps.newHashMap();
     for (LibraryUnit lib : library.getImports()) {
       String prefix = library.getPrefixOf(lib);