fix 1510: Static constructor interferes with ReflectedDefinition

[dsyme]

Fixes #1510

[dsyme]

One failure:

1) Failed : FSharp-Tests-Core+CoreTests.reflect
Error running command 'D:\j\workspace\release_ci_pa---c6929ad7\tests\fsharp\..\..\Tools\dotnetcli\dotnet.exe' with args 'D:\j\workspace\release_ci_pa---c6929ad7\tests\fsharp\../testbin/release/coreclr/fsharp/core/reflect/test.exe' in directory 'D:\j\workspace\release_ci_pa---c6929ad7\tests\fsharp\core\reflect'. ERRORLEVEL -532462766
at TestFramework.checkResult(CmdResult result) in D:\j\workspace\release_ci_pa---c6929ad7\tests\fsharp\test-framework.fs:line 259
at [email protected](CmdResult result) in D:\j\workspace\release_ci_pa---c6929ad7\tests\fsharp\test-framework.fs:line 438
at SingleTest.singleTestBuildAndRunCore(TestConfig cfg, String copyFiles, Permutation p) in D:\j\workspace\release_ci_pa---c6929ad7\tests\fsharp\single-test.fs:line 64
at SingleTest.singleTestBuildAndRun(String dir, Permutation p) in D:\j\workspace\release_ci_pa---c6929ad7\tests\fsharp\single-test.fs:line 172

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qcwowe932q OK
qcqmkee32al1 OK
qcqmkee32al2 OK
qcqmkee32ao OK
qcqmkee32ap OK
qcqmkee32aq OK
qcqmkee32ar OK
qcqmkee32ao1 OK
qcqmkee32ao2 OK
qcqmkee32ao3 OK
qcqmkee32ao4 OK
qcqmkee32ao5 OK
qcqmkee32ao6 OK

Unhandled Exception: System.ArgumentException: The record type 'Test+InternalRecordType1' is invalid. Required constructor is not defined.
   at Microsoft.FSharp.Reflection.Impl.getRecordConstructorMethod(Type typ, BindingFlags bindingFlags)
   at Microsoft.FSharp.Reflection.FSharpValue.PreComputeRecordConstructor(Type recordType, FSharpOption`1 bindingFlags)
   at <StartupCode$test>.$Test2.main@()