[llvm-bugs] [Bug 90027] Add a fixit for inserting the matching closing brace

[LLVM Bugs via llvm-bugs]

Issue	90027
Summary	Add a fixit for inserting the matching closing brace
Labels	new issue
Assignees
Reporter	andre-hartmann

    This request was posted as [clangd #2022](https://github.com/clangd/clangd/issues/2022) first, after being reported as [QTCREATORBUG-30732](https://bugreports.qt.io/browse/QTCREATORBUG-30732)

Consider the following C code:
```
#include <string.h>

static char GlobalVariable[64];

int main()
{
    strcpy(GlabalVariable, "Hello World");
    strcpy(GlobalVariable, "Hello World";
 return 0;
}
```
For the first errornous line we get a fixit (light bulb) to rename the variable and the following tooltip:
```
main.c:7:12: Use of undeclared identifier 'GlabalVariable'; did you mean 'GlobalVariable'? (fix available)
main.c:3:13: 'GlobalVariable' declared here
```
but for the second there is only a Clangd error that says a closing brace is missing at column 41:
```
main.c:8:41: Expected ')'
main.c:8:11: to match this '('
```
It would be cool to have fixits for the second kind of errors too.

This is how it looks in Qt Creator:

![325283164-22dd8356-343a-463a-ad27-5e6eceeb3bd5](https://github.com/llvm/llvm-project/assets/23051867/516761fb-5489-46b5-b027-c646e0bd952b)

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