Crash Intel GLSL linker (drivers 10.18.14.4264) - minimal repro ; the two files compile fine, but when calling glLinkProgram, crashes the application (works fine on other vendors, even on Intel HD 4000)

shader.frag

#version 150

// UNCOMMENT the following line to crash the linker
// Crash happens on driver 10.18.14.4264 on Windows 8.1 x64, on Intel HD 4400
//#define CRASH_DRIVER_PLEASE

in vec4 var_shadowTexCoords;
uniform sampler2DShadow py_shadowMaps[ 1 ];

out vec4 fragColor;

#ifdef CRASH_DRIVER_PLEASE

float _eval_shadow( sampler2DShadow shadowMap, vec4 shadowTexCoord )
{
  return textureProj( shadowMap, shadowTexCoord );
}

#else

#define _eval_shadow(a, b) textureProj(a, b)

#endif

void main(void)
{
    float shadow_factor = _eval_shadow( py_shadowMaps[0], var_shadowTexCoords );
    fragColor = vec4(shadow_factor);
}

shader.vert

#version 150

out vec4 var_shadowTexCoords;

void init_shadows_es( vec4 someVertex )
{
  var_shadowTexCoords = someVertex;
}

in vec4 mg_vertex;

void main(void)
{
  init_shadows_es(mg_vertex);
  gl_Position = mg_vertex;
}