Issue #16607 has been reported by gotoken (Kentaro Goto).

----------------------------------------
Bug #16607: retried require does not raise Exception even if a library has SyntaxError
https://bugs.ruby-lang.org/issues/16607

* Author: gotoken (Kentaro Goto)
* Status: Open
* Priority: Normal
* ruby -v: ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-linux]
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN
----------------------------------------
From shell:

```
% echo "class C" > c.rb
% ruby -e 'begin p require "./c" ; rescue SyntaxError; end; p require "./c"; C'
```

**expected result:** SyntaxError
**2.7 and current master output:**

```
false
Traceback (most recent call last):
-e:1:in `<main>': uninitialized constant C (NameError)
```



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