[Parser]: First token after a class is considered strict mode

[pvdz]

I guess when parsing the } closing token of a class, the next token is still parsed as the strict-mode context from that class, rather than using the outer strict mode status.

In script mode, this (a legacy octal) passes in Babel (because it applies annexb by default):

05

This fails after a class:

class x {}
05

But passes with anything in between:

class x {}
y
05

(All the above cases should pass in non-strict script mode under annexb rules)

Babel Parser version: 7.8.4

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