Added check for duplicate source paths in all compiler workflows.

compiler/tests/org/jetbrains/jet/cli/CliCommonTest.java

@@ -42,7 +42,14 @@ public class CliCommonTest extends CliBaseTest {
     }
 
     @Test
-    public void duplicateSource() throws Exception {
+    public void duplicateSources() throws Exception {
+        executeCompilerCompareOutputJVM();
+
+        Assert.assertTrue(new File(tmpdir.getTmpDir(), PackageClassUtils.getPackageClassName(FqName.ROOT) + ".class").isFile());
+    }
+
+    @Test
+    public void duplicateSourcesInModule() throws Exception {
         executeCompilerCompareOutputJVM();
     }
 

compiler/tests/org/jetbrains/jet/cli/KotlincExecutableTestGenerated.java

@@ -51,9 +51,14 @@ public class KotlincExecutableTestGenerated extends AbstractKotlincExecutableTes
             doJvmTest("compiler/testData/cli/jvm/diagnosticsOrder.args");
         }
         
-        @TestMetadata("duplicateSource.args")
-        public void testDuplicateSource() throws Exception {
-            doJvmTest("compiler/testData/cli/jvm/duplicateSource.args");
+        @TestMetadata("duplicateSources.args")
+        public void testDuplicateSources() throws Exception {
+            doJvmTest("compiler/testData/cli/jvm/duplicateSources.args");
+        }
+        
+        @TestMetadata("duplicateSourcesInModule.args")
+        public void testDuplicateSourcesInModule() throws Exception {
+            doJvmTest("compiler/testData/cli/jvm/duplicateSourcesInModule.args");
         }
         
         @TestMetadata("extraHelp.args")