Fix tests for diagnostics: temporary join to build thread

Author: zarechenskiy

kotlin-eclipse-ui-test/src/org/jetbrains/kotlin/core/tests/diagnostics/KotlinDiagnosticsTestCase.java

@@ -55,6 +55,7 @@
 import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall;
 import org.jetbrains.kotlin.resolve.diagnostics.Diagnostics;
 import org.jetbrains.kotlin.testframework.editor.KotlinProjectTestCase;
+import org.jetbrains.kotlin.testframework.utils.KotlinTestUtils;
 import org.junit.Assert;
 import org.junit.Before;
 
@@ -185,6 +186,8 @@ public TestModule invoke(TestFile file) {
 
             List<KtFile> jetFiles = getKtFiles(testFilesInModule, true);
             allKtFiles.addAll(jetFiles);
+            
+            KotlinTestUtils.joinBuildThread();
 
             AnalysisResult analysisResult = EclipseAnalyzerFacadeForJVM.INSTANCE
                     .analyzeFilesWithJavaIntegration(getTestProject().getJavaProject(), getProject(), jetFiles)