Typo fix.

git-svn-id: https://google-web-toolkit.googlecode.com/svn/releases/1.6@4147 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/dev/core/src/com/google/gwt/core/ext/linker/impl/StandardCompilationResult.java b/dev/core/src/com/google/gwt/core/ext/linker/impl/StandardCompilationResult.java
index 48a10bc..743e8cc 100644
--- a/dev/core/src/com/google/gwt/core/ext/linker/impl/StandardCompilationResult.java
+++ b/dev/core/src/com/google/gwt/core/ext/linker/impl/StandardCompilationResult.java
@@ -107,7 +107,7 @@
             "Unexpectedly unable to read PermutationResult '"
                 + resultFile.getAbsolutePath() + "'", e);
       }
-      if (toReturn == null) {
+      if (result == null) {
         throw new RuntimeException(
             "Unexpectedly unable to read PermutationResult '"
                 + resultFile.getAbsolutePath() + "'");