JETAnalyzer: discard sources always

Might be more memory efficient.

src/abstractinterpret/abstractanalyzer.jl

@@ -550,7 +550,7 @@ CC.InferenceParams(analyzer::AbstractAnalyzer) = get_inf_params(analyzer)
 CC.OptimizationParams(analyzer::AbstractAnalyzer) = get_opt_params(analyzer)
 #=CC.=#get_inference_world(analyzer::AbstractAnalyzer) = get_world(analyzer)
 
-CC.may_compress(analyzer::AbstractAnalyzer) = false
+# this overload is necessary to avoid caching with the const ABI
 CC.may_discard_trees(analyzer::AbstractAnalyzer) = false
 
 let # overload `inlining_policy`

src/analyzers/jetanalyzer.jl

@@ -80,6 +80,9 @@ struct JETAnalyzer{RP<:ReportPass} <: AbstractAnalyzer
     end
 end
 
+# JETAnalyzer does not need any sources, so discard them always
+CC.maybe_compress_codeinfo(interp::JETAnalyzer, mi::MethodInstance, ci::CodeInfo) = nothing
+
 # JETAnalyzer hooks on abstract interpretation only,
 # and so the cost of running the optimization passes is just unnecessary
 CC.may_optimize(::JETAnalyzer) = false