Fix an issue related with texelFetchOffset

Test/newTexture.frag

@@ -41,6 +41,7 @@ void main()
     v.y += textureOffset(s2DShadow, c3D, ivec2(3), c1D);
     v += texelFetch(s3D, ic3D, ic1D);
     v += texelFetchOffset(s2D, ic2D, 4, ivec2(3));
+    v += texelFetchOffset(sr, ic2D, ivec2(4));
     v.y += textureLodOffset(s2DShadow, c3D, c1D, ivec2(3));
     v += textureProjLodOffset(s2D, c3D, c1D, ivec2(3));
     v += textureGrad(sCube, c3D, c3D, c3D);
@@ -62,7 +63,6 @@ void main()
     v += vec4(iv);
     iv = texelFetch(is2DArray, ic3D, ic1D);
     v += vec4(iv);
-
     iv += texelFetch(is2Dms, ic2D, ic1D);
     v += vec4(iv);
     v += texelFetch(sb, ic1D);

Test/spv.newTexture.frag

 #version 430
 
 uniform sampler2D s2D;
+uniform sampler2DRect sr;
 uniform sampler3D s3D;
 uniform samplerCube sCube;
 uniform samplerCubeShadow sCubeShadow;
@@ -39,6 +40,7 @@ void main()
     v.y += textureOffset(s2DShadow, c3D, ivec2(3), c1D);
     v += texelFetch(s3D, ic3D, ic1D);
     v += texelFetchOffset(s2D, ic2D, 4, ivec2(3));
+    v += texelFetchOffset(sr, ic2D, ivec2(4));
     v.y += textureLodOffset(s2DShadow, c3D, c1D, ivec2(3));
     v += textureProjLodOffset(s2D, c3D, c1D, ivec2(3));
     v += textureGrad(sCube, c3D, c3D, c3D);

glslang/MachineIndependent/ParseHelper.cpp

@@ -1431,7 +1431,7 @@ void TParseContext::builtInOpCheck(const TSourceLoc& loc, const TFunction& fnCan
         int arg = -1;
         switch (callNode.getOp()) {
         case EOpTextureOffset:          arg = 2;  break;
-        case EOpTextureFetchOffset:     arg = 3;  break;
+        case EOpTextureFetchOffset:     arg = (arg0->getType().getSampler().dim != EsdRect) ? 3 : 2; break;
         case EOpTextureProjOffset:      arg = 2;  break;
         case EOpTextureLodOffset:       arg = 3;  break;
         case EOpTextureProjLodOffset:   arg = 3;  break;