Added '-verbose' option to ant command

Added the '-verbose' option to ant command to get more context
in case of any error which helps in debugging

Test: Run code coverage report generation for
support_lib(atp/test_runs/4672827) with the verbose option in ant
command and you could find a more detailed error than the one in the logs
Change-Id: Ie9484f2a6b311148927a3b1d472bcaa9686dfa3d
diff --git a/src/com/android/tradefed/testtype/JacocoCodeCoverageTest.java b/src/com/android/tradefed/testtype/JacocoCodeCoverageTest.java
index 9979755..ff61a51 100644
--- a/src/com/android/tradefed/testtype/JacocoCodeCoverageTest.java
+++ b/src/com/android/tradefed/testtype/JacocoCodeCoverageTest.java
@@ -203,7 +203,7 @@
     private void runAntBuild(File buildXml) throws IOException {
         // Run ant to generate the coverage report
         String[] cmd = {
-                mAntBinary, "-f", buildXml.getAbsolutePath()
+                mAntBinary, "-verbose", "-f", buildXml.getAbsolutePath()
         };
         CommandResult result = runTimedCmd(mReportTimeout, cmd);
 
diff --git a/tests/src/com/android/tradefed/testtype/JacocoCodeCoverageTestTest.java b/tests/src/com/android/tradefed/testtype/JacocoCodeCoverageTestTest.java
index 85a7ab6..fed124a 100644
--- a/tests/src/com/android/tradefed/testtype/JacocoCodeCoverageTestTest.java
+++ b/tests/src/com/android/tradefed/testtype/JacocoCodeCoverageTestTest.java
@@ -120,7 +120,7 @@
             reportDir = jacocoCodeCoverageTest.generateCoverageReport(executionFiles,
                     JacocoCodeCoverageReportFormat.HTML);
             verify(jacocoCodeCoverageTest, times(1)).runTimedCmd(reportTimeout, new String[] {
-                    "ant", "-f", tempBuildXml.getAbsolutePath()
+                    "ant", "-verbose", "-f", tempBuildXml.getAbsolutePath()
             });
             assertNotNull(reportDir);
         } finally {