Make 'RangeConstraintManager' the default ConstraintManager.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65173 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/ccc-analyzer b/utils/ccc-analyzer
index 57dab8d..9e0474b 100755
--- a/utils/ccc-analyzer
+++ b/utils/ccc-analyzer
@@ -309,7 +309,7 @@
 
 # Get the constraints engine.
 my $ConstraintsModel = $ENV{'CCC_ANALYZER_CONSTRAINTS_MODEL'};
-if (!defined $ConstraintsModel) { $ConstraintsModel = "basic"; }
+if (!defined $ConstraintsModel) { $ConstraintsModel = "range"; }
 
 # Get the output format.
 my $OutputFormat = $ENV{'CCC_ANALYZER_OUTPUT_FORMAT'};