Code folding doesn't work with blocks with preprocessor macros (C++)

[indigox4]

Issue Type: Bug

Repro steps:

cut and paste the following code snippet into a .cpp file:

void blah()
{
    if( 1 ) {
        if( 2 ) {
#ifdef FOO
            int i = 0;
#endif
        }
    }
}

Move the mouse to the gutter of the if(1) statement and click on the [-] icon to fold it.

Actual result:
The code folding stops at the #ifdef FOO line.

Expected result:
The code folding should collapse everything inside the if(1) block.

VS Code version: Code 1.30.2 (61122f8, 2019-01-07T22:54:13.295Z)
OS version: Windows_NT x64 10.0.14393

System Info

Item	Value
CPUs	Intel(R) Xeon(R) CPU E5-2650 v4 @ 2.20GHz (48 x 2195)
GPU Status	2d_canvas: enabled checker_imaging: disabled_off flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software rasterization: enabled video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled
Memory (System)	63.74GB (50.32GB free)
Process Argv
Screen Reader	no
VM	0%

Extensions (5)

Extension	Author (truncated)	Version
python	ms-	2018.12.1
cpptools	ms-	0.20.1
mel	sat	0.1.2
cmake	twx	0.0.17
clang-format	xav	1.8.0

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• [folding] show folding actions at the end of folding range as well (#60670)

[indigox4]

#60670 looks like a different issue. Thanks.

[aeschli]

You are requesting c++ aware folding which needs to come from a language extensions like Microsoft/vscode-cpptools.
The extension is aware of the request: See microsoft/vscode-cpptools#407