if: Add "TEST <test>" condition

if(TEST TestNameThatExists) will return true if a test with the name
TestNameThatExists has been added with add_test.  The syntax is similar
to if(TARGET TargetName).  Since use of "TEST" as an argument to if()
could previously be interpreted as a non-keyword argument, add policy
CMP0064 to treat it as a keyword as NEW behavior.

1 files changed, 1 insertions, 0 deletions

diff --git a/Source/cmConditionEvaluator.h b/Source/cmConditionEvaluator.h
index c923d76..c4e2d11 100644
--- a/Source/cmConditionEvaluator.h
+++ b/Source/cmConditionEvaluator.h
@@ -94,6 +94,7 @@ private:
   cmPolicies::PolicyStatus Policy12Status;
   cmPolicies::PolicyStatus Policy54Status;
   cmPolicies::PolicyStatus Policy57Status;
+  cmPolicies::PolicyStatus Policy64Status;
 };
 
 #endif