Allow JTypeOracle information to be reused across compiles.

Change-Id: I8afe419c0e41004882a0c9da7fc965fdb5dd12a9
Review-Link: https://gwt-review.googlesource.com/#/c/8418/
diff --git a/dev/BUILD b/dev/BUILD
index fe265e6..44b019f 100644
--- a/dev/BUILD
+++ b/dev/BUILD
@@ -186,6 +186,7 @@
             "core/src/com/google/gwt/dev/CompileTaskOptionsImpl.java",
             "core/src/com/google/gwt/dev/GwtCreateMap.java",
             "core/src/com/google/gwt/dev/GwtVersion.java",
+            "core/src/com/google/gwt/dev/MinimalRebuildCache.java",
             "core/src/com/google/gwt/dev/Permutation.java",
             "core/src/com/google/gwt/dev/PrecompileTaskOptions.java",
             "core/src/com/google/gwt/dev/PrecompileTaskOptionsImpl.java",