multiple definitions of qtPositionAttributeName() in qtdeclarative

There are two definitions of qtPositionAttributeName() and qtTexCoordAttributeName()  in qtdeclarative (src/quick/items/qquickshadereffectnode.cpp and src/imports/wavefrontmesh/qquickshadereffectmesh.cpp) - if both modules are statically linked into another binary, there are duplicate symbols defined. 

Since the strings they return are the same, they should probably be merged into a single definition?