glcpp: Resolve implicit GLSL version to 100 if the API is ES.

Fixes a regression since b2d1c579 where ES shaders without a #version
declaration would fail to compile if their precision declaration was
wrapped in the standard #ifdef GL_ES check.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74066
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

src/glsl/glcpp/glcpp.h

@@ -183,6 +183,7 @@ struct glcpp_parser {
 	size_t info_log_length;
 	int error;
 	const struct gl_extensions *extensions;
+	gl_api api;
 	bool version_resolved;
 	bool has_new_line_number;
 	int new_line_number;
@@ -194,7 +195,7 @@ struct glcpp_parser {
 struct gl_extensions;
 
 glcpp_parser_t *
-glcpp_parser_create (const struct gl_extensions *extensions);
+glcpp_parser_create (const struct gl_extensions *extensions, gl_api api);
 
 int
 glcpp_parser_parse (glcpp_parser_t *parser);