Ensure chakrashim extracts information from right context

[kunalspathak]

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As mentioned in recent PR #96, for repl scenario we were not extracting the global object from right context. Instead we simply extracted from current context leading to new context being collected. There are multiple places where we do one of 2 things that needs to be reviewed.

• IsolateShim::GetCurrent()->GetCurrentContextShim();
• jsrt::ContextShim::GetCurrent()

[digitalinfinity]

@kunalspathak I see several commits that referenced this issue- do you know if this still needs to be fixed or whether it can be closed?

[kunalspathak]

Commits 983c0b8 and 0125f12 just points to the severity/implication around this issue. This definitely need to be fixed.

[digitalinfinity]

Ok, thanks