Mesa (staging/19.0): glsl: Silence may unused parameter warnings in glsl/ir.h

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Module: Mesa
Branch: staging/19.0
Commit: aa340450a06ea4feabf24b3f354a30b11d303376
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=aa340450a06ea4feabf24b3f354a30b11d303376

Author: Ian Romanick <ian.d.romanick at intel.com>
Date:   Thu Apr 18 12:33:39 2019 -0700

glsl: Silence may unused parameter warnings in glsl/ir.h

Every file that included glsl/ir.h had a warning like:

src/compiler/glsl/ir.h: In member function ‘virtual bool ir_rvalue::is_lvalue(const _mesa_glsl_parse_state*) const’:
src/compiler/glsl/ir.h:236:64: warning: unused parameter ‘state’ [-Wunused-parameter]
    virtual bool is_lvalue(const struct _mesa_glsl_parse_state *state = NULL) const
                                                                ^
Cc: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Fixes: fa4ebf6b8d9 ("glsl: add _mesa_glsl_parse_state object to is_lvalue()")
Reviewed-by: Sagar Ghuge <sagar.ghuge at intel.com>
Reviewed-by: Matt Turner <mattst88 at gmail.com>

(cherry picked from commit 3b087f668f9d5aeae85df2a4128cbe3b9b25ae6a)

---

 src/compiler/glsl/ir.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/glsl/ir.h b/src/compiler/glsl/ir.h
index a9f68b174c4..8b32ed8209a 100644
--- a/src/compiler/glsl/ir.h
+++ b/src/compiler/glsl/ir.h
@@ -233,7 +233,7 @@ public:
 
    ir_rvalue *as_rvalue_to_saturate();
 
-   virtual bool is_lvalue(const struct _mesa_glsl_parse_state *state = NULL) const
+   virtual bool is_lvalue(const struct _mesa_glsl_parse_state * = NULL) const
    {
       return false;
    }