https://bugzilla.novell.com/show_bug.cgi?id=691433

https://bugzilla.novell.com/show_bug.cgi?id=691433#c0


           Summary: LINQ statements cause Mono.CSharp.Evaluator to crash
                    with an InternalErrorException
    Classification: Mono
           Product: Mono: Compilers
           Version: SVN
          Platform: x86
        OS/Version: Windows 7
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: C#
        AssignedTo: msa...@novell.com
        ReportedBy: roman.stof...@gamlor.info
         QAContact: mono-bugs@lists.ximian.com
          Found By: ---
           Blocker: ---


Created an attachment (id=427745)
 --> (http://bugzilla.novell.com/attachment.cgi?id=427745)
TestCase causing the exception

Description of Problem:

When trying to run a statement with a LINQ expression an InternalErrorException
is thrown. 

Running on .NET 4.0 on Windows 7. Compiled with Mono.CSharp project with Visual
Studio 2010 using the solution-file.

Version: From Github, master-branch, commit: 207cdd892939dffbcbca


Steps to reproduce the problem:
1. Running on .NET with Windows 7. 
2. Compiled an executed with .NET 4.0. Used the Solution-file
(mcs/class/Mono.CSharp/Mono.CSharp.sln) to compile the project with Visual
Studio 2010.
3. Run the example program (See also provided test case)


Actual Results:
Exception:
Internal compiler error at Internal(1,1):: exception caught while emitting
Name: Host 
Attributes: 150
Method Signature: Length: 5
Arguments: 0
Signature: 
0  0  1  16  28  0  


Mono.CSharp.InternalErrorException : VariableInfo is null and the variable
`strings' is not used
at Mono.CSharp.LocalVariable.CreateBuilder(EmitContext ec) in statement.cs:
line 1593
at Mono.CSharp.BlockVariableDeclaration.DoEmit(EmitContext ec) in statement.cs:
line 1368
at Mono.CSharp.Statement.Emit(EmitContext ec) in statement.cs: line 69
at Mono.CSharp.Block.DoEmit(EmitContext ec) in statement.cs: line 2035
at Mono.CSharp.Block.Emit(EmitContext ec) in statement.cs: line 2045
at Mono.CSharp.ExplicitBlock.Emit(EmitContext ec) in statement.cs: line 2177
at Mono.CSharp.ToplevelBlock.Emit(EmitContext ec) in statement.cs: line 2918
at Mono.CSharp.MethodData.Emit(DeclSpace parent) in method.cs: line 2021
at Mono.CSharp.MethodOrOperator.Emit() in method.cs: line 686
at Mono.CSharp.Method.Emit() in method.cs: line 1232
at Mono.CSharp.TypeContainer.EmitType() in class.cs: line 1968
at Mono.CSharp.Evaluator.CompileBlock(Class host, Undo undo, Report Report) in
eval.cs: line 659
at Mono.CSharp.Evaluator.Compile(String input, ref CompiledMethod compiled) in
eval.cs: line 231
at Mono.CSharp.Evaluator.Evaluate(String input, ref Object result, ref Boolean
result_set) in eval.cs: line 298
at Mono.CSharp.Evaluator.Run(String statement) in eval.cs: line 391



Expected Results:
Expected that the LINQ statement is exectued.


How often does this happen?
-Everytime. 


Additional Information:

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