Debugger: Fix QFlags dumper for cdb

Also adding a test covering this dumper.

Change-Id: I491dd87e52f65bf3faf21d81436f264507bf0b51
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

share/qtcreator/debugger/qttypes.py

@@ -642,10 +642,10 @@ def qdump__QFiniteStack(d, value):
 def qdump__QFlags(d, value):
     i = value.split('{int}')[0]
     enumType = value.type[0]
-    if d.isLldb:
-        d.putValue(i.cast(enumType.name).display())
-    else:
+    if d.isGdb:
         d.putValue(i.cast('enum ' + enumType.name).display())
+    else:
+        d.putValue(i.cast(enumType.name).display())
     d.putNumChild(0)
 
 

tests/auto/debugger/tst_dumpers.cpp

@@ -1895,6 +1895,17 @@ void tst_Dumpers::dumper_data()
                + Check("c", "120", "@QChar");
 
 
+    QTest::newRow("QFlags")
+            << Data("#include <QFlags>\n"
+                    "enum Foo { a = 0x1, b = 0x2 };\n"
+                    "Q_DECLARE_FLAGS(FooFlags, Foo)\n"
+                    "Q_DECLARE_OPERATORS_FOR_FLAGS(FooFlags)\n",
+                    "FooFlags f1(a);\n"
+                    "FooFlags f2(a | b);\n")
+               + CoreProfile()
+               + Check("f1", "a (1)", TypeDef("QFlags<enum Foo>", "FooFlags"))
+               + Check("f2", "(a | b) (3)", "FooFlags") % GdbEngine;
+
     QTest::newRow("QDateTime")
             << Data("#include <QDateTime>\n",