Shivanshu Goyal e53b9f733a Print source location in the error message when parens are missing around sizeof typename and the expression is inside macro expansion ...

Given the following code:

```
void Foo(int);

void Baz()
{
	Bar(sizeof int);
}
```

The error message which is printed today is this:
```
error: expected parentheses around type name in sizeof expression
```

There is no source location printed whatsoever, so fixing a compile break like this becomes extremely hard in a large codebase.

My change improves the error message. But it doesn't output a FixItHint because I wasn't able to figure out how to get the locations for left and right parens. So any tips would be appreciated.

```
<source>:7:6: error: expected parentheses around type name in sizeof expression
        Bar(sizeof int);
            ^
```

Reviewed By: rsmith

Differential Revision: https://reviews.llvm.org/D91129

2020-12-16 12:03:31 -08:00

136 KiB

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