[Bug c++/66843] New: g++ outputting nonsense errors, won't compile operational program

[fvvnaqnd at grr dot la]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66843

            Bug ID: 66843
           Summary: g++ outputting nonsense errors, won't compile
                    operational program
           Product: gcc
           Version: 5.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: fvvnaqnd at grr dot la
  Target Milestone: ---

I'm trying to compile this valid c++ code, as follows:

int main(int argc, char** argv) {
    dildo
    #define char int
    int *ptr = 0;
    return EXIT_SUCCESS;
}
=
while(1)
break;
/* https://www.gnu.org/licenses/gpl-3.0.en.html */
int i = 1 / 0;
goto dildo;

However, when trying to compile this with g++, the compiler spits out nonsense,
unintelligible errors:

shit.cpp: In function ‘int main(int, char**)’:
shit.cpp:2:5: error: ‘dildo’ was not declared in this scope
     dildo
     ^
shit.cpp:5:12: error: ‘EXIT_SUCCESS’ was not declared in this scope
     return EXIT_SUCCESS;
            ^
shit.cpp: At global scope:
shit.cpp:7:1: error: expected unqualified-id before ‘=’ token
 =
 ^
shit.cpp:11:11: warning: division by zero [-Wdiv-by-zero]
 int i = 1 / 0;
           ^
shit.cpp:12:1: error: expected unqualified-id before ‘goto’
 goto dildo;
 ^

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