Fix -var-create for undefined variables (MI)

llvm-svn: 236825

lldb/test/tools/lldb-mi/variable/TestMiVar.py

@@ -32,7 +32,7 @@ class MiVarTestCase(lldbmi_testcase.MiTestCaseBase):
 
         # Print non-existant variable
         self.runCmd("-var-create var1 * undef")
-        #self.expect("\^error") #FIXME: shows undef as {...}
+        self.expect("\^error,msg=\"Failed to create variable object for 'undef'\"")
         self.runCmd("-data-evaluate-expression undef")
         self.expect("\^error,msg=\"Could not evaluate expression\"")
 

lldb/tools/lldb-mi/MICmdCmdVar.cpp

@@ -197,7 +197,7 @@ CMICmdCmdVarCreate::Execute(void)
     if (!value.IsValid())
         value = frame.EvaluateExpression(rStrExpression.c_str());
 
-    if (value.IsValid())
+    if (value.IsValid() && value.GetError().Success())
     {
         CompleteSBValue(value);
         m_bValid = true;