Fix some warnings in test code.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1499081 13f79535-47bb-0310-9956-ffa450edef68

src/test/java/org/apache/commons/math3/fitting/HarmonicFitterTest.java

@@ -179,7 +179,7 @@ public class HarmonicFitterTest {
         // and period 12, and all sample points are taken at integer abscissae
         // so function values all belong to the integer subset {-3, -2, -1, 0,
         // 1, 2, 3}.
-        final HarmonicFitter.ParameterGuesser guesser
-            = new HarmonicFitter.ParameterGuesser(points);
+        @SuppressWarnings("unused")
+        final HarmonicFitter.ParameterGuesser guesser = new HarmonicFitter.ParameterGuesser(points);
     }
 }

src/test/java/org/apache/commons/math3/fitting/PolynomialFitterTest.java

@@ -135,6 +135,7 @@ public class PolynomialFitterTest {
         final double[] init = new double[] { 0, 0 };
         final int maxEval = 10000; // Trying hard to fit.
 
+        @SuppressWarnings("unused")
         final double[] gn = doMath798(new GaussNewtonOptimizer(checker), maxEval, init);
     }