Tests for "WebAssemblyValueType 7 not recognized" (#35)
Tests for "WebAssemblyValueType 7 not recognized" (#35)

Added a test that fails fails with the following error (to be fixed in
the next commit):
```
WebAssembly.ModuleLoadException: At offset 45: WebAssemblyValueType 7 not recognized. (Parameter 'valueType') ---> System.ArgumentOutOfRangeException: WebAssemblyValueType 7 not recognized. (Parameter 'valueType')
  Stack Trace:
      at WebAssembly.ValueTypeExtensions.ToSystemType(WebAssemblyValueType valueType) in D:\projects\dotnet-webassembly\WebAssembly\WebAsssemblyValueType.cs:line 36
   at WebAssembly.Runtime.Compile.FromBinary(Reader reader, CompilerConfiguration configuration, Type instanceContainer, Type exportContainer) in D:\projects\dotnet-webassembly\WebAssembly\Runtime\Compile.cs:line 743
   at WebAssembly.Runtime.Compile.FromBinary[TExports](Stream input, CompilerConfiguration configuration) in D:\projects\dotnet-webassembly\WebAssembly\Runtime\Compile.cs:line 105
--- End of inner exception stack trace ---
    at WebAssembly.Runtime.Compile.FromBinary[TExports](Stream input, CompilerConfiguration configuration) in D:\projects\dotnet-webassembly\WebAssembly\Runtime\Compile.cs:line 134
   at WebAssembly.Runtime.Compile.FromBinary[TExports](Stream input) in D:\projects\dotnet-webassembly\WebAssembly\Runtime\Compile.cs:line 83
   at WebAssembly.CompilerTests.Compiler_ReadGlobalSectionWhenGlobalImport() in D:\projects\dotnet-webassembly\WebAssembly.Tests\CompilerTests.cs:line 692
```

RyanLamansky/dotnet-webassembly