Debugger: Update subtree if partial variable is requested

Instead of dumping the complete locals just dump the subtree
with the partial variable.

Change-Id: Ieac5f62efd87144bbea7a6a559d8be8d48d9084e
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

share/qtcreator/debugger/cdbbridge.py

@@ -267,11 +267,9 @@ class Dumper(DumperBase):
         self.anonNumber = 0
 
         variables = []
-        for val in cdbext.listOfLocals():
-            self.currentContextValue = val
-            name = val.name()
+        for val in cdbext.listOfLocals(self.partialVariable):
             value = self.fromNativeValue(val)
-            value.name = name
+            value.name = val.name()
             variables.append(value)
 
         self.handleLocals(variables)