Semantics: Map noise*() to an operator for PureOperatorBuiltins mode.

Test/120.vert

@@ -139,6 +139,14 @@ void foo2()
     bool b = any(lessThan(v4, attv4));  // tests aggregate arg to unary built-in 
 }
 
+void noise()
+{
+    float f1 = noise1(1.0);
+    vec2 f2 = noise2(vec2(1.0));
+    vec3 f3 = noise3(vec3(1.0));
+    vec4 f4 = noise4(vec4(1.0));
+}
+
 // version 130 features
 
 uniform int c;

glslang/Include/intermediate.h

@@ -238,6 +238,8 @@ enum TOperator {
 
     EOpFtransform,
 
+    EOpNoise,
+
     EOpEmitVertex,           // geometry only
     EOpEndPrimitive,         // geometry only
     EOpEmitStreamVertex,     // geometry only

glslang/MachineIndependent/Initialize.cpp

@@ -3696,6 +3696,11 @@ void IdentifyBuiltIns(int version, EProfile profile, int spv, EShLanguage langua
         symbolTable.relateToOperator("textureGatherOffset",     EOpTextureGatherOffset);
         symbolTable.relateToOperator("textureGatherOffsets",    EOpTextureGatherOffsets);
 
+        symbolTable.relateToOperator("noise1", EOpNoise);
+        symbolTable.relateToOperator("noise2", EOpNoise);
+        symbolTable.relateToOperator("noise3", EOpNoise);
+        symbolTable.relateToOperator("noise4", EOpNoise);
+
         if (spv == 0 && (IncludeLegacy(version, profile, spv) || (profile == EEsProfile && version == 100))) {
             symbolTable.relateToOperator("ftransform",               EOpFtransform);
 

glslang/MachineIndependent/intermOut.cpp

@@ -318,6 +318,8 @@ bool TOutputTraverser::visitUnary(TVisit /* visit */, TIntermUnary* node)
     case EOpFindLSB:                out.debug << "findLSB";               break;
     case EOpFindMSB:                out.debug << "findMSB";               break;
 
+    case EOpNoise:                  out.debug << "noise";                 break;
+
     default: out.debug.message(EPrefixError, "Bad unary op");
     }