AutoTest: Widen scope for run under cursor

..and debug under cursor for QtTest and GTest.

Depending on the information coming from the code model
we may be able to get a correct scope even when standing
inside the function that is defining the test.
This makes more sense than the original behavior which
made it a hard requirement to stand on a literal to
run or debug a test under cursor.
But as the codemodel does not provide usable information
for all frameworks keep the original behavior as fallback.

Task-number: QTCREATORBUG-28752
Change-Id: I13ea7b0ad1e8207da6cb884d212667c4c657957c
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/autotest/itestframework.cpp

@@ -63,6 +63,11 @@ ITestParser *ITestFramework::testParser()
     return m_testParser;
 }
 
+QStringList ITestFramework::testNameForSymbolName(const QString &) const
+{
+    return {};
+}
+
 ITestTool::ITestTool(bool activeByDefault)
     : ITestBase(activeByDefault, ITestBase::Tool)
 {}