Minor: fix code style in NegativeJavaStreamTest and group tests

idea/tests/com/intellij/debugger/streams/kotlin/psi/java/NegativeJavaStreamTest.kt

@@ -11,59 +11,25 @@ import com.intellij.debugger.streams.wrapper.StreamChainBuilder
 class NegativeJavaStreamTest : KotlinPsiChainBuilderTestCase.Negative("streams/negative") {
   override val kotlinChainBuilder: StreamChainBuilder = JavaStandardLibrarySupportProvider().chainBuilder
 
-  fun testFakeStream() {
-    doTest()
-  }
+  fun testFakeStream() = doTest()
 
-  fun testWithoutTerminalOperation() {
-    doTest()
-  }
+  fun testWithoutTerminalOperation() = doTest()
 
-  fun testNoBreakpoint() {
-    doTest()
-  }
+  fun testNoBreakpoint() = doTest()
 
-  fun testBreakpointOnMethod() {
-    doTest()
-  }
+  fun testBreakpointOnMethod() = doTest()
+  fun testBreakpointOnIfCondition() = doTest()
+  fun testBreakpointOnNewScope() = doTest()
+  fun testBreakpointOnElseBranch() = doTest()
 
-  fun testBreakpointOnIfCondition() {
-    doTest()
-  }
+  fun testInLambda() = doTest()
+  fun testInLambdaWithBody() = doTest()
+  fun testInAnonymous() = doTest()
 
-  fun testBreakpointOnNewScope() {
-    doTest()
-  }
+  fun testAfterStatement() = doTest()
 
-  fun testBreakpointOnElseBranch() {
-    doTest()
-  }
+  fun testInPreviousStatement() = doTest()
+  fun testInNextStatement() = doTest()
 
-  fun testInLambda() {
-    doTest()
-  }
-
-  fun testInLambdaWithBody() {
-    doTest()
-  }
-
-  fun testInAnonymous() {
-    doTest()
-  }
-
-  fun testAfterStatement() {
-    doTest()
-  }
-
-  fun testInPreviousStatement() {
-    doTest()
-  }
-
-  fun testInNextStatement() {
-    doTest()
-  }
-
-  fun testIdea173415() {
-    doTest()
-  }
+  fun testIdea173415() = doTest()
 }