GLSL: Initiate version GLSL 460, including accept extraneous semicolons.

Test/450.vert

@@ -26,3 +26,4 @@ void foo()
 {
     SS::f;
 }
+; // ERROR: no extraneous semicolons

Test/460.frag

+#version 460 core
+
+struct S {
+    float f;
+    vec4 v;
+};
+
+in S s;
+
+void main()
+{
+    interpolateAtCentroid(s.v);
+}

Test/460.vert

+#version 460 core
+
+int i;
+; // extraneous semicolon okay
+float f;;;
+
+void main()
+{
+}
+;
+;

Test/baseResults/450.vert.out

@@ -2,7 +2,8 @@
 ERROR: 0:12: 'out' : cannot be bool 
 ERROR: 0:13: 'sampler2D' : sampler/image types can only be used in uniform variables or function parameters: outo
 ERROR: 0:27: '::' : not supported 
-ERROR: 3 compilation errors.  No code generated.
+ERROR: 0:29: 'extraneous semicolon' : not supported for this version or the enabled extensions 
+ERROR: 4 compilation errors.  No code generated.
 
 
 Shader version: 450

Test/baseResults/460.frag.out

+460.frag
+Shader version: 460
+0:? Sequence
+0:10  Function Definition: main( ( global void)
+0:10    Function Parameters: 
+0:12    Sequence
+0:12      interpolateAtCentroid ( global 4-component vector of float)
+0:12        v: direct index for structure ( global 4-component vector of float)
+0:12          's' ( smooth in structure{ global float f,  global 4-component vector of float v})
+0:12          Constant:
+0:12            1 (const int)
+0:?   Linker Objects
+0:?     's' ( smooth in structure{ global float f,  global 4-component vector of float v})
+
+
+Linked fragment stage:
+
+
+Shader version: 460
+0:? Sequence
+0:10  Function Definition: main( ( global void)
+0:10    Function Parameters: 
+0:12    Sequence
+0:12      interpolateAtCentroid ( global 4-component vector of float)
+0:12        v: direct index for structure ( global 4-component vector of float)
+0:12          's' ( smooth in structure{ global float f,  global 4-component vector of float v})
+0:12          Constant:
+0:12            1 (const int)
+0:?   Linker Objects
+0:?     's' ( smooth in structure{ global float f,  global 4-component vector of float v})
+

Test/baseResults/460.vert.out

+460.vert
+Shader version: 460
+0:? Sequence
+0:7  Function Definition: main( ( global void)
+0:7    Function Parameters: 
+0:?   Linker Objects
+0:?     'i' ( global int)
+0:?     'f' ( global float)
+0:?     'gl_VertexID' ( gl_VertexId int VertexId)
+0:?     'gl_InstanceID' ( gl_InstanceId int InstanceId)
+
+
+Linked vertex stage:
+
+
+Shader version: 460
+0:? Sequence
+0:7  Function Definition: main( ( global void)
+0:7    Function Parameters: 
+0:?   Linker Objects
+0:?     'i' ( global int)
+0:?     'f' ( global float)
+0:?     'gl_VertexID' ( gl_VertexId int VertexId)
+0:?     'gl_InstanceID' ( gl_InstanceId int InstanceId)
+

glslang/MachineIndependent/ShaderLang.cpp

@@ -116,7 +116,7 @@ TParseContextBase* CreateParseContext(TSymbolTable& symbolTable, TIntermediate&
 
 // Local mapping functions for making arrays of symbol tables....
 
-const int VersionCount = 16;  // index range in MapVersionToIndex
+const int VersionCount = 17;  // index range in MapVersionToIndex
 
 int MapVersionToIndex(int version)
 {
@@ -140,6 +140,7 @@ int MapVersionToIndex(int version)
     case 450: index = 14; break;
     case 500: index =  0; break; // HLSL
     case 320: index = 15; break;
+    case 460: index = 16; break;
     default:  assert(0);  break;
     }
 
@@ -516,6 +517,7 @@ bool DeduceVersionProfile(TInfoSink& infoSink, EShLanguage stage, bool versionNo
     case 430: break;
     case 440: break;
     case 450: break;
+    case 460: break;
 
     // unknown version
     default:

glslang/MachineIndependent/glslang.y

@@ -2872,8 +2872,10 @@ translation_unit
         parseContext.intermediate.setTreeRoot($$);
     }
     | translation_unit external_declaration {
-        $$ = parseContext.intermediate.growAggregate($1, $2);
-        parseContext.intermediate.setTreeRoot($$);
+        if ($2 != nullptr) {
+            $$ = parseContext.intermediate.growAggregate($1, $2);
+            parseContext.intermediate.setTreeRoot($$);
+        }
     }
     ;
 
@@ -2884,6 +2886,11 @@ external_declaration
     | declaration {
         $$ = $1;
     }
+    | SEMICOLON {
+        parseContext.requireProfile($1.loc, ~EEsProfile, "extraneous semicolon");
+        parseContext.profileRequires($1.loc, ~EEsProfile, 460, nullptr, "extraneous semicolon");
+        $$ = nullptr;
+    }
     ;
 
 function_definition

gtests/AST.FromFile.cpp

@@ -151,6 +151,8 @@ INSTANTIATE_TEST_CASE_P(
         "450.tese",
         "450.frag",
         "450.comp",
+        "460.frag",
+        "460.vert",
         "dce.frag",
         "atomic_uint.frag",
         "aggOps.frag",