SKIP: FAILED

#version 310 es
precision mediump float;

int x_1 = 0;
void main_1() {
  int x_2 = x_1;
  return;
}

void tint_symbol(uint x_1_param) {
  x_1 = int(x_1_param);
  main_1();
}

void main() {
  tint_symbol(uint(gl_SampleID));
  return;
}
Error parsing GLSL shader:
ERROR: 0:16: 'gl_SampleID' : required extension not requested: GL_OES_sample_variables
ERROR: 0:16: '' : compilation terminated 
ERROR: 2 compilation errors.  No code generated.