Clang: Fix providing snippets for another case

We have to indicate snippet addition for the PassThroughToLibClang case.

This completes

    commit d946ff5403
    Clang: Fix adding completion snippets after {

Change-Id: Ib543c415d4fdcc99d8bbf4815930f3d8481bc810
Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>
Reviewed-by: Marco Bubke <marco.bubke@qt.io>

tests/unit/unittest/clangcompletioncontextanalyzer-test.cpp

@@ -312,6 +312,14 @@ TEST_F(ClangCompletionContextAnalyzer, AfterOpeningParenthesis)
     ASSERT_THAT(analyzer, HasResult(CCA::PassThroughToLibClang, 0, 0, positionInText, true));
 }
 
+TEST_F(ClangCompletionContextAnalyzer, AfterOpeningBraceAndIdentifierOnNewLine)
+{
+    auto analyzer = runAnalyzer("if (1) {\n"
+                                "cla@");
+
+    ASSERT_THAT(analyzer, HasResult(CCA::PassThroughToLibClang, -3, -3, positionInText, true));
+}
+
 TEST_F(ClangCompletionContextAnalyzer, ArgumentOneAtSignal)
 {
     auto analyzer = runAnalyzer("SIGNAL(@");