daisytuner / docc / 26521975951

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Libnode ptr edges (#719)

Migrating SDFGs to treat pointers as inputs to libNodes / Calls as scalars.
A pointer will only appear in an output edge if its actually returned from the function (like malloc).

* Stdlib, Blas and Tensor Matmul nodes were migrated to this new format. Other, currently transitory Tensor Nodes are not yet migrated.
* DOCC version was bumped to incorporate previous docc-llvm versions (up to 0.4.0) that had been counted separately.
! Until all passes consider the use / leak of pointers as uncertainty / hiding potential writes, TensorNodes are declared as general side-effect.
* Lots of utility functions to centralize the creation (and edges) of various libNodes that needed to be changed.
* Fixed & unified docc paths across python and llvm front-ends.
* Skip BlockFusion test that fails to its libNodes currently having side effects
~ Prevent a crash in DotViz when using symbolic offsets into structs
* Removing old ConstProp pass, it is not safe for the new pointer representation and should not be all too critical

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