Minor code cleanup of a couple of compiler visitors.

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@1959 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/dev/core/src/com/google/gwt/dev/jjs/impl/ArrayNormalizer.java b/dev/core/src/com/google/gwt/dev/jjs/impl/ArrayNormalizer.java
index c540293..a69996f 100644
--- a/dev/core/src/com/google/gwt/dev/jjs/impl/ArrayNormalizer.java
+++ b/dev/core/src/com/google/gwt/dev/jjs/impl/ArrayNormalizer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2007 Google Inc.
+ * Copyright 2008 Google Inc.
  * 
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  * use this file except in compliance with the License. You may obtain a copy of
@@ -37,8 +37,8 @@
 
 /**
  * Replace array accesses and instantiations with calls to the Array class.
- * Depends on {@link com.google.gwt.dev.jjs.impl.CompoundAssignmentNormalizer}
- * and {@link com.google.gwt.dev.jjs.impl.CastNormalizer} having already run.
+ * Depends on {@link CompoundAssignmentNormalizer} and {@link CastNormalizer}
+ * having already run.
  */
 public class ArrayNormalizer {
 
diff --git a/dev/core/src/com/google/gwt/dev/jjs/impl/CompoundAssignmentNormalizer.java b/dev/core/src/com/google/gwt/dev/jjs/impl/CompoundAssignmentNormalizer.java
index 73941f7..f738203 100644
--- a/dev/core/src/com/google/gwt/dev/jjs/impl/CompoundAssignmentNormalizer.java
+++ b/dev/core/src/com/google/gwt/dev/jjs/impl/CompoundAssignmentNormalizer.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2007 Google Inc.
+ * Copyright 2008 Google Inc.
  * 
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  * use this file except in compliance with the License. You may obtain a copy of
@@ -25,7 +25,6 @@
 import com.google.gwt.dev.jjs.ast.JLocalRef;
 import com.google.gwt.dev.jjs.ast.JMethodBody;
 import com.google.gwt.dev.jjs.ast.JModVisitor;
-import com.google.gwt.dev.jjs.ast.JNullLiteral;
 import com.google.gwt.dev.jjs.ast.JParameterRef;
 import com.google.gwt.dev.jjs.ast.JProgram;
 import com.google.gwt.dev.jjs.ast.JThisRef;
@@ -72,7 +71,6 @@
         JExpression newLhs = replacer.accept(x.getLhs());
         localIndex = pushUsedLocals;
 
-        JNullLiteral litNull = program.getLiteralNull();
         JBinaryOperation operation = new JBinaryOperation(program,
             x.getSourceInfo(), newLhs.getType(), JBinaryOperator.DIV, newLhs,
             x.getRhs());
@@ -184,7 +182,7 @@
   private JMethodBody currentMethodBody;
   private int localIndex;
   private final JProgram program;
-  private final List/* <JLocal> */tempLocals = new ArrayList/* <JLocal> */();
+  private final List<JLocal> tempLocals = new ArrayList<JLocal>();
 
   private CompoundAssignmentNormalizer(JProgram program) {
     this.program = program;
@@ -202,7 +200,7 @@
 
   private JLocal getTempLocal() {
     if (localIndex < tempLocals.size()) {
-      return (JLocal) tempLocals.get(localIndex++);
+      return tempLocals.get(localIndex++);
     }
     JLocal newTemp = program.createLocal(null,
         ("$t" + localIndex++).toCharArray(), program.getTypeVoid(), false,