glsl: Enable GLSL ES 3.00 features inherited from desktop GLSL.

This patch turns on the following features for GLSL ES 3.00:

- Array constructors, whole array assignment, and array comparisons.
- Second and third operands of ?: may be arrays.
- Use of "in" and "out" qualifiers on globals.
- Bitwise and modulus operators.
- Integral vertex shader inputs.
- Range-checking of literal integers.
- array.length method.
- Function calls may be constant expressions.
- Integral varyings must be qualified with "flat".
- Interpolation and centroid qualifiers may not be applied to vertex
  shader inputs.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Carl Worth <cworth@cworth.org>

src/glsl/glsl_lexer.ll

@@ -122,7 +122,7 @@ literal_integer(char *text, int len, struct _mesa_glsl_parse_state *state,
 
    if (value > UINT_MAX) {
       /* Note that signed 0xffffffff is valid, not out of range! */
-      if (state->is_version(130, 0)) {
+      if (state->is_version(130, 300)) {
 	 _mesa_glsl_error(lloc, state,
 			  "Literal value `%s' out of range", text);
       } else {