Implement EllipsisNotation where useful

[efaulhaber]

Resolve #179.

[codecov]

Codecov Report

Merging #189 into master will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #189      +/-   ##
==========================================
+ Coverage   91.59%   91.60%   +0.01%     
==========================================
  Files          31       31              
  Lines        6993     6966      -27     
==========================================
- Hits         6405     6381      -24     
+ Misses        588      585       -3     

Impacted Files	Coverage Δ
src/Trixi.jl	100.00% <ø> (ø)
src/io/io.jl	90.65% <100.00%> (+0.73%)	⬆️
src/run.jl	94.86% <100.00%> (-0.16%)	⬇️
src/timedisc/timedisc_euler_gravity.jl	90.65% <100.00%> (+0.30%)	⬆️

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[efaulhaber]

To make sure that these lines are only executed for HyperbolicDiffusionEquations I added a simple isa check, but I'm not sure if this is the most elegant solution.

# Check steady-state integration residual
if solver.equations isa HyperbolicDiffusionEquations2D ||
  solver.equations isa HyperbolicDiffusionEquations3D
  if maximum(abs, view(solver.elements.u_t, 1, ..)) <= solver.equations.resid_tol
    println()
    println("-"^80)
    println("  Steady state tolerance of ",solver.equations.resid_tol," reached at time ",time)
    println("-"^80)
    println()
    finalstep = true
  end
end

[sloede]

It is not, but it's what was there before. You could do a single check for the abstract type, though:

Trixi.jl/src/equations/equations.jl

Line 105 in 5a3aa26

abstract type AbstractHyperbolicDiffusionEquations{NDIMS, NVARS} <: AbstractEquation{NDIMS, NVARS} end

[efaulhaber]

Ah okay, I didn't see the abstract type before.

[efaulhaber]

@sloede Is this as you intended?

Edit: Didn't see your approval.