Remove the now dead 'shared' type field, and add semantic check for buffer on non-block.

Test/430.vert

@@ -155,3 +155,5 @@ void fooBarrier()
     memoryBarrierImage();
     groupMemoryBarrier();            // ERROR
 }
+
+buffer vec4 v;  // ERROR

Test/baseResults/430.vert.out

@@ -48,7 +48,8 @@ ERROR: 0:146: 'shared' : not supported in this stage: vertex
 ERROR: 0:150: 'barrier' : no matching overloaded function found 
 ERROR: 0:154: 'memoryBarrierShared' : no matching overloaded function found 
 ERROR: 0:156: 'groupMemoryBarrier' : no matching overloaded function found 
-ERROR: 48 compilation errors.  No code generated.
+ERROR: 0:159: 'buffer' : buffers can be declared only as blocks 
+ERROR: 49 compilation errors.  No code generated.
 
 
 Shader version: 430
@@ -127,6 +128,7 @@ ERROR: node is still EOpNull!
 0:?     'bbinst4' (layout(xfb_stride=80 ) out block{layout(xfb_buffer=1 xfb_offset=16 ) out 4-component vector of float bbv1})
 0:?     'bbinst5' (out block{layout(xfb_buffer=1 xfb_offset=0 ) out 4-component vector of float bbv1, layout(xfb_buffer=1 xfb_offset=64 xfb_stride=80 ) out 4-component vector of float bbv2})
 0:?     'sharedv' (shared 4-component vector of float)
+0:?     'v' (buffer 4-component vector of float)
 0:?     'gl_VertexID' (gl_VertexId int)
 0:?     'gl_InstanceID' (gl_InstanceId int)
 
@@ -213,6 +215,7 @@ ERROR: node is still EOpNull!
 0:?     'bbinst4' (layout(xfb_stride=80 ) out block{layout(xfb_buffer=1 xfb_offset=16 ) out 4-component vector of float bbv1})
 0:?     'bbinst5' (out block{layout(xfb_buffer=1 xfb_offset=0 ) out 4-component vector of float bbv1, layout(xfb_buffer=1 xfb_offset=64 xfb_stride=80 ) out 4-component vector of float bbv2})
 0:?     'sharedv' (shared 4-component vector of float)
+0:?     'v' (buffer 4-component vector of float)
 0:?     'gl_VertexID' (gl_VertexId int)
 0:?     'gl_InstanceID' (gl_InstanceId int)
 

glslang/Include/Types.h

@@ -315,7 +315,6 @@ public:
         nopersp   = false;
         patch     = false;
         sample    = false;
-        shared    = false;
         coherent  = false;
         volatil   = false;
         restrict  = false;
@@ -333,7 +332,6 @@ public:
     bool nopersp   : 1;
     bool patch     : 1;
     bool sample    : 1;
-    bool shared    : 1;
     bool coherent  : 1;
     bool volatil   : 1;
     bool restrict  : 1;
@@ -1179,8 +1177,6 @@ public:
             p += snprintf(p, end - p, "patch ");
         if (qualifier.sample)
             p += snprintf(p, end - p, "sample ");
-        if (qualifier.shared)
-            p += snprintf(p, end - p, "shared ");
         if (qualifier.coherent)
             p += snprintf(p, end - p, "coherent ");
         if (qualifier.volatil)

glslang/MachineIndependent/ParseHelper.cpp

@@ -1921,6 +1921,9 @@ void TParseContext::globalQualifierCheck(TSourceLoc loc, const TQualifier& quali
     if (qualifier.isMemory() && ! publicType.isImage() && publicType.qualifier.storage != EvqBuffer)
         error(loc, "memory qualifiers cannot be used on this type", "", "");
 
+    if (qualifier.storage == EvqBuffer && publicType.basicType != EbtBlock)
+        error(loc, "buffers can be declared only as blocks", "buffer", "");
+
     if (qualifier.storage != EvqVaryingIn && qualifier.storage != EvqVaryingOut)
         return;
 
@@ -2093,7 +2096,6 @@ void TParseContext::mergeQualifiers(TSourceLoc loc, TQualifier& dst, const TQual
     MERGE_SINGLETON(nopersp);
     MERGE_SINGLETON(patch);
     MERGE_SINGLETON(sample);
-    MERGE_SINGLETON(shared);
     MERGE_SINGLETON(coherent);
     MERGE_SINGLETON(volatil);
     MERGE_SINGLETON(restrict);

glslang/MachineIndependent/linkValidate.cpp

@@ -296,8 +296,7 @@ void TIntermediate::mergeErrorCheck(TInfoSink& infoSink, const TIntermSymbol& sy
     }
 
     // Memory...
-    if (symbol.getQualifier().shared    != unitSymbol.getQualifier().shared ||
-        symbol.getQualifier().coherent  != unitSymbol.getQualifier().coherent ||
+    if (symbol.getQualifier().coherent  != unitSymbol.getQualifier().coherent ||
         symbol.getQualifier().volatil   != unitSymbol.getQualifier().volatil ||
         symbol.getQualifier().restrict  != unitSymbol.getQualifier().restrict ||
         symbol.getQualifier().readonly  != unitSymbol.getQualifier().readonly ||