Wrap some lines that were accidentally unwrapped and document a known…

… issue in ProcessDefinesTest.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=244971265

test/com/google/javascript/jscomp/ProcessDefinesTest.java

@@ -319,11 +319,21 @@ public void testSimpleReassign3() {
 
   @Test
   public void testDefineAssignedToSimpleAlias() {
-    test(
+    testSame(
         lines(
-            "const x = true;", "const ALIAS = x;", "/** @define {boolean} */ const DEF2 = ALIAS;"),
+            "const x = true;", //
+            "const ALIAS = x;",
+            "/** @define {boolean} */ const DEF2 = ALIAS;"));
+  }
+
+  @Test
+  public void testDefineAssignedToEnumAlias() {
+    testError(
         lines(
-            "const x = true", "const ALIAS = x;", "/** @define {boolean} */ const DEF2 = ALIAS;"));
+            "/** @enum {string} */ const E = {A: 'a'};", //
+            "/** @define {string} */ const DEF2 = E.A;"),
+        // TODO(sdh): It would be nice if this worked, but doesn't seem worth implementing.
+        ProcessDefines.INVALID_DEFINE_INIT_ERROR);
   }
 
   @Test