Outline for C99/11 with Clang/GCC gets confused - incorrect additional entries

[runelabs]

• VSCode Version: 1.25.0 x64 2018-07-05T13:10:37.273Z ( 0f080e5 )
• OS Version: Linux
• Microsoft C/C++ IntelliSense - Version 0.17.6: July 2, 2018
• clang version 6.0.0 , gcc 7.3.0

Steps to Reproduce:

1. The outline view shows several incorrect entries - local function variables and other calls from within function bodies.
2. It seems to be triggered by the Clang and GCC C language extension for compound expressions.
   I imagine there is similar incorrect behaviour for Clang blocks.
   -- https://gcc.gnu.org/onlinedocs/gcc-3.2/gcc/Statement-Exprs.html
   -- https://gcc.gnu.org/onlinedocs/gcc-3.2/gcc/Naming-Types.html
   -- https://en.wikipedia.org/wiki/Blocks_(C_language_extension)
   -- https://clang.llvm.org/docs/BlockLanguageSpec.html
3. See the confused outline view for the following example code

#include <stdarg.h>
#include <string.h>

#define noing __attribute__((noinline))
#define fn() 
#define success() 0

typedef struct {int a; int b; char* s; int c;} Some;    // weird entry in outline

noing void foo(unsigned int len, int argc,...) {  // note: change signature -> no outline update
  fn();
  int list[argc];
  Some* p = &list[0];
  va_list argp;
  va_start(argp, argc);
  for (int k=0;k!=argc;++k) {
    *p = ({Some tmp = {1, 2, &"", 2}; tmp;}); // compound expression likely culprit
  }
  va_end(argp);                       // va_end  incorrectly shown in outline
  int k = 0;                          // k incorrectly shown in outline
  while (len != 0) {
    if (!success()) {
      register int r = len -1;
      if (k>0) memmove(&list[k],&list[k+1],r*sizeof(int)); // memmove shows in outline
      len--;
    }
    fn();                             // fn incorrectly shown in outline
  }
}

Does this issue occur when all extensions are disabled?: Yes

[vscodebot]

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

• Editor indentation incorrect around tabbed function parameters (#35952)

[jrieken]

@runelabs What extension are you using for clang?

[runelabs]

@jrieken
Using Microsoft C/C++ IntelliSense - Version 0.17.6: July 2, 2018

[jrieken]

Ok, thanks. The issue is that the extension needs to adopt some new API. I have created microsoft/vscode-cpptools#2230 for them and I am closing this as duplicate