Don't infer non-final field types

editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/code/ExtractUtils.java

Index: editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/code/ExtractUtils.java
diff --git a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/code/ExtractUtils.java b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/code/ExtractUtils.java
index 08b21f73fbd2230ab78bd1eb4c06a12b8f5124cd..738ac2a0c82f5fd41aa087a0bad5b91a6384ccca 100644
--- a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/code/ExtractUtils.java
+++ b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/refactoring/code/ExtractUtils.java
@@ -25,8 +25,6 @@ import com.google.dart.compiler.parser.DartScanner;
 import com.google.dart.compiler.parser.Token;
 import com.google.dart.compiler.type.Type;
 import com.google.dart.compiler.util.apache.StringUtils;
-import com.google.dart.engine.scanner.StringScanner;
-import com.google.dart.engine.scanner.TokenType;
 import com.google.dart.tools.core.buffer.Buffer;
 import com.google.dart.tools.core.internal.model.SourceRangeImpl;
 import com.google.dart.tools.core.internal.util.SourceRangeUtils;
@@ -36,7 +34,6 @@ import com.google.dart.tools.core.model.SourceRange;
 import com.google.dart.tools.core.utilities.compiler.DartCompilerUtilities;
 import com.google.dart.tools.internal.corext.SourceRangeFactory;
 import com.google.dart.tools.internal.corext.refactoring.util.ExecutionUtils;
-import com.google.dart.tools.internal.corext.refactoring.util.RunnableEx;
 import com.google.dart.tools.internal.corext.refactoring.util.RunnableObjectEx;
 
 import org.eclipse.core.runtime.Assert;
@@ -144,25 +141,6 @@ public class ExtractUtils {
   }
 
   /**
-   * @return {@link com.google.dart.engine.scanner.Token}s of the given Dart source.
-   */
-  public static List<com.google.dart.engine.scanner.Token> tokenizeSource(final String s) {
-    final List<com.google.dart.engine.scanner.Token> tokens = Lists.newArrayList();
-    ExecutionUtils.runIgnore(new RunnableEx() {
-      @Override
-      public void run() throws Exception {
-        StringScanner scanner = new StringScanner(null, s, null);
-        com.google.dart.engine.scanner.Token token = scanner.tokenize();
-        while (token.getType() != TokenType.EOF) {
-          tokens.add(token);
-          token = token.getNext();
-        }
-      }
-    });
-    return tokens;
-  }
-
-  /**
    * @return {@link DartExpression}s from <code>operands</code> which are completely covered by
    *         given {@link SourceRange}. Range should start and end between given
    *         {@link DartExpression}s.
@@ -377,6 +355,13 @@ public class ExtractUtils {
   }
 
   /**
+   * @return the given range of text from {@link Buffer}.
+   */
+  public String getText(SourceRange range) {
+    return getText(range.getOffset(), range.getLength());
+  }
+
+  /**
    * @return the resolved {@link DartUnit}.
    */
   public DartUnit getUnitNode() {