Replace the "Qt" GLSL variant with "ES_100"

The Qt variant is almost exactly the same as GLSL/ES,
so there is little point having a separate variant code.

src/libs/glsl/glslkeywords.cpp

@@ -116,7 +116,7 @@ static inline int classify4(const char *s) {
     if (s[1] == 'o') {
       if (s[2] == 'w') {
         if (s[3] == 'p') {
-          return Parser::T_LOWP | Lexer::Variant_GLSL_Qt | Lexer::Variant_GLSL_ES_100 | Lexer::Variant_GLSL_400;
+          return Parser::T_LOWP | Lexer::Variant_GLSL_ES_100 | Lexer::Variant_GLSL_400;
         }
       }
     }
@@ -274,7 +274,7 @@ static inline int classify5(const char *s) {
       if (s[2] == 'g') {
         if (s[3] == 'h') {
           if (s[4] == 'p') {
-            return Parser::T_HIGHP | Lexer::Variant_GLSL_Qt | Lexer::Variant_GLSL_ES_100 | Lexer::Variant_GLSL_400;
+            return Parser::T_HIGHP | Lexer::Variant_GLSL_ES_100 | Lexer::Variant_GLSL_400;
           }
         }
       }
@@ -563,7 +563,7 @@ static inline int classify7(const char *s) {
           if (s[4] == 'u') {
             if (s[5] == 'm') {
               if (s[6] == 'p') {
-                return Parser::T_MEDIUMP | Lexer::Variant_GLSL_Qt | Lexer::Variant_GLSL_ES_100 | Lexer::Variant_GLSL_400;
+                return Parser::T_MEDIUMP | Lexer::Variant_GLSL_ES_100 | Lexer::Variant_GLSL_400;
               }
             }
           }

src/libs/glsl/glsllexer.h

@@ -74,7 +74,6 @@ public:
         Variant_GLSL_150            = 0x00020000,   // 1.50 and higher
         Variant_GLSL_400            = 0x00040000,   // 4.00 and higher
         Variant_GLSL_ES_100         = 0x00080000,   // ES 1.00 and higher
-        Variant_GLSL_Qt             = 0x00100000,
         Variant_VertexShader        = 0x00200000,
         Variant_FragmentShader      = 0x00400000,
         Variant_Reserved            = 0x80000000,

src/libs/glsl/specs/glsl.keywords

@@ -45,7 +45,7 @@ else
 flat                        %variant GLSL_150
 float
 for
-highp                       %variant GLSL_Qt | GLSL_ES_100 | GLSL_400
+highp                       %variant GLSL_ES_100 | GLSL_400
 if
 in
 inout
@@ -66,7 +66,7 @@ ivec2
 ivec3
 ivec4
 layout                      %variant GLSL_150
-lowp                        %variant GLSL_Qt | GLSL_ES_100 | GLSL_400
+lowp                        %variant GLSL_ES_100 | GLSL_400
 mat2
 mat2x2                      %variant GLSL_120
 mat2x3                      %variant GLSL_120
@@ -79,7 +79,7 @@ mat4
 mat4x2                      %variant GLSL_120
 mat4x3                      %variant GLSL_120
 mat4x4                      %variant GLSL_120
-mediump                     %variant GLSL_Qt | GLSL_ES_100 | GLSL_400
+mediump                     %variant GLSL_ES_100 | GLSL_400
 noperspective               %variant GLSL_150
 out
 patch                       %variant GLSL_400

src/libs/glsl/tests/main.cpp

@@ -41,9 +41,6 @@ int main(int argc, char *argv[])
             variant |= Lexer::Variant_GLSL_400;
         } else if (!strcmp(argv[1], "--version=es")) {
             variant |= Lexer::Variant_GLSL_ES_100;
-        } else if (!strcmp(argv[1], "--version=qt")) {
-            variant |= Lexer::Variant_GLSL_ES_100 |
-                       Lexer::Variant_GLSL_Qt;
         } else if (!strcmp(argv[1], "--shader=vertex")) {
             variant |= Lexer::Variant_VertexShader;
         } else if (!strcmp(argv[1], "--shader=fragment")) {

src/plugins/glsleditor/glsleditor.cpp

@@ -405,7 +405,7 @@ int GLSLTextEditor::languageVariant() const
     if (isDesktop)
         variant |= Lexer::Variant_GLSL_120;
     else
-        variant |= Lexer::Variant_GLSL_Qt;
+        variant |= Lexer::Variant_GLSL_ES_100;
     if (isVertex)
         variant |= Lexer::Variant_VertexShader;
     if (isFragment)