[Issue 18481] demangling error in stacktrace

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18481

--- Comment #3 from Seb <greensunny12 at gmail.com> ---
Oh and exploring a bit when I look at the ICE in
https://issues.dlang.org/show_bug.cgi?id=18136, I get the following stack trace
with only partial demangling:

```
core.exception.AssertError at dmd/statement.d(425): Assertion failure
----------------
??:? _d_assertp [0xdc37fbf5]
??:? dmd.statement.ErrorStatement dmd.statement.ErrorStatement.__ctor()
[0xdc25ec05]
??:? _ZN16Semantic3Visitor5visitEP15FuncDeclaration [0xdc291e83]
??:? _ZN16ParseTimeVisitorI10ASTCodegenE5visitEP22FuncLiteralDeclaration
[0xdc275ef1]
??:? _ZN22FuncLiteralDeclaration6acceptEP7Visitor [0xdc1f5739]
??:? _Z9semantic3P7DsymbolP5Scope [0xdc29062c]
??:? _ZN25ExpressionSemanticVisitor5visitEP7FuncExp [0xdc1d80be]
??:? _ZN7FuncExp6acceptEP7Visitor [0xdc1ca119]
??:? _Z18expressionSemanticP10ExpressionP5Scope [0xdc1ec61e]
??:? _ZN14ResolveVisitor5visitEP10TypeTypeof [0xdc26a43a]
...
??:? int dmd.dtemplate.functionResolve(dmd.declaration.Match*,
dmd.dsymbol.Dsymbol, dmd.globals.Loc, dmd.dscope.Scope*,
dmd.root.array.Array!(dmd.root.rootobject.RootObject).Array*, dmd.mtype.Type,
dmd.root.array.Array!(dmd.expression.Expression).Array*,
const(char)**).applyTemplate(dmd.dtemplate.TemplateDeclaration) [0xdc1af047]
??:?
_Z15resolveFuncCallRK3LocP5ScopeP7DsymbolP5ArrayIP10RootObjectEP4TypePS6_IP10ExpressionEi
[0xdc1f3ffe]
??:? _ZN25ExpressionSemanticVisitor5visitEP7CallExp [0xdc1dad73]
```

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