Clean up declarations of runReadAction() etc

idea/tests/org/jetbrains/jet/plugin/debugger/AbstractKotlinSteppingTest.kt

@@ -128,6 +128,6 @@ public abstract class AbstractKotlinSteppingTest : KotlinDebuggerTestBase() {
                     else -> BasicStepMethodFilter(stepTarget.getMethod(), stepTarget.getCallingExpressionLines())
                 }
             }
-        }!!
+        }
     }
 }

idea/tests/org/jetbrains/jet/plugin/refactoring/move/AbstractJetMoveTest.kt

@@ -75,7 +75,7 @@ public abstract class AbstractJetMoveTest : MultiFileTestCase() {
                 }
 
                 offset
-            }!!
+            }
         }
 
         val config = JsonParser().parse(FileUtil.loadFile(File(path), true)) as JsonObject

idea/tests/org/jetbrains/jet/plugin/run/RunConfigurationTest.kt

@@ -62,7 +62,7 @@ class RunConfigurationTest: CodeInsightTestCase() {
     fun testDependencyModuleClasspath() {
         val dependencyModuleSrcDir = configureModule(moduleDirPath("module"), getTestProject().getBaseDir()!!).src
 
-        val moduleWithDependencyDir = runWriteAction { getTestProject().getBaseDir()!!.createChildDirectory(this, "moduleWithDependency") }!!
+        val moduleWithDependencyDir = runWriteAction { getTestProject().getBaseDir()!!.createChildDirectory(this, "moduleWithDependency") }
 
         val moduleWithDependency = createModule("moduleWithDependency")
         ModuleRootModificationUtil.setModuleSdk(moduleWithDependency, getTestProjectJdk())
@@ -109,7 +109,7 @@ class RunConfigurationTest: CodeInsightTestCase() {
             PsiTestUtil.setCompilerOutputPath(configModule, testOutDir.getUrl(), true)
 
             Pair(srcOutDir, testOutDir)
-        }!!
+        }
 
         PsiDocumentManager.getInstance(getTestProject()).commitAllDocuments()