Debugger: Add a fake void native type to the cdbbridge

Looking up 'void' is known to cause hick ups.

Change-Id: I4c4b3bae5b5ac572404156edbd457003fbbf53f3
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

share/qtcreator/debugger/cdbbridge.py

@@ -32,6 +32,51 @@ sys.path.insert(1, os.path.dirname(os.path.abspath(inspect.getfile(inspect.curre
 
 from dumper import *
 
+class FakeVoidType(cdbext.Type):
+    def __init__(self, name , dumper):
+        cdbext.Type.__init__(self)
+        self.typeName = name.strip()
+        self.dumper = dumper
+
+    def name(self):
+        return self.typeName
+
+    def bitsize(self):
+        return 0 if self.typeName == 'void' else self.dumper.ptrSize() * 8
+
+    def code(self):
+        if self.typeName.endswith('*'):
+            return TypeCodePointer
+        if self.typeName.endswith(']'):
+            return TypeCodeArray
+        return TypeCodeVoid
+
+    def unqualified(self):
+        return self
+
+    def target(self):
+        code = self.code()
+        if code == TypeCodePointer:
+            return FakeVoidType(self.typeName[:-1], self.dumper)
+        if code == TypeCodeVoid:
+            return self
+        try:
+            return FakeVoidType(self.typeName[:self.typeName.rindex('[')], self.dumper)
+        except:
+            return FakeVoidType('void', self.dumper)
+
+    def stripTypedef(self):
+        return self
+
+    def fields(self):
+        return []
+
+    def templateArgument(self, pos, numeric):
+        return None
+
+    def templateArguments(self):
+        return []
+
 class Dumper(DumperBase):
     def __init__(self):
         DumperBase.__init__(self)
@@ -121,6 +166,8 @@ class Dumper(DumperBase):
         self.output += stuff
 
     def lookupNativeType(self, name):
+        if name.startswith('void'):
+            return FakeVoidType(name, self)
         return cdbext.lookupType(name)
 
     def reportResult(self, result, args):

src/libs/qtcreatorcdbext/pytype.cpp

@@ -384,7 +384,7 @@ PyTypeObject *type_pytype()
         0,                                          /* tp_getattro */
         0,                                          /* tp_setattro */
         0,                                          /* tp_as_buffer */
-        Py_TPFLAGS_DEFAULT,         /* tp_flags */
+        Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,   /* tp_flags */
         "Type objects",                             /* tp_doc */
         0,                                          /* tp_traverse */
         0,                                          /* tp_clear */