ralloc: Annotate printf functions with PRINTFLIKE(...)

Catches problems such as (in the gles3 branch)

glcpp-parse.y: In function '_glcpp_parser_handle_version_declaration':
glcpp-parse.y:1990:39: warning: format '%lli' expects argument of type
	'long long int', but argument 4 has type 'int' [-Wformat]

As a side-effect, remove ralloc.c's likely/unlikely macros and just use
the ones from main/compiler.h.

NOTE: This is a candidate for the release branches.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

src/glsl/ralloc.c

@@ -41,14 +41,6 @@ _CRTIMP int _vscprintf(const char *format, va_list argptr);
 
 #include "ralloc.h"
 
-#ifdef __GNUC__
-#define likely(x)       __builtin_expect(!!(x),1)
-#define unlikely(x)     __builtin_expect(!!(x),0)
-#else
-#define likely(x)       !!(x)
-#define unlikely(x)     !!(x)
-#endif
-
 #ifndef va_copy
 #ifdef __va_copy
 #define va_copy(dest, src) __va_copy((dest), (src))

src/glsl/ralloc.h

@@ -54,6 +54,7 @@ extern "C" {
 #include <stddef.h>
 #include <stdarg.h>
 #include <stdbool.h>
+#include "main/compiler.h"
 
 /**
  * \def ralloc(ctx, type)
@@ -301,7 +302,7 @@ bool ralloc_strncat(char **dest, const char *str, size_t n);
  *
  * \return The newly allocated string.
  */
-char *ralloc_asprintf (const void *ctx, const char *fmt, ...);
+char *ralloc_asprintf (const void *ctx, const char *fmt, ...) PRINTFLIKE(2, 3);
 
 /**
  * Print to a string, given a va_list.
@@ -334,7 +335,8 @@ char *ralloc_vasprintf(const void *ctx, const char *fmt, va_list args);
  * \return True unless allocation failed.
  */
 bool ralloc_asprintf_rewrite_tail(char **str, size_t *start,
-				  const char *fmt, ...);
+				  const char *fmt, ...)
+				  PRINTFLIKE(3, 4);
 
 /**
  * Rewrite the tail of an existing string, starting at a given index.
@@ -376,7 +378,8 @@ bool ralloc_vasprintf_rewrite_tail(char **str, size_t *start, const char *fmt,
  *
  * \return True unless allocation failed.
  */
-bool ralloc_asprintf_append (char **str, const char *fmt, ...);
+bool ralloc_asprintf_append (char **str, const char *fmt, ...)
+			     PRINTFLIKE(2, 3);
 
 /**
  * Append formatted text to the supplied string, given a va_list.