Add size asserts for MIR `SourceScopeData` & `VarDebugInfo` There's vectors of both of these in `mir::Body`, so might as well track them. (I was pondering adding something to one or the other, so wanted this to see the memory impact.)
LocalDefId
def_path_str
{Idx, IndexVec, IndexSlice}
rustc_const_eval
rustc_fluent_macro
rustc_macros
rustc_lint_defs::Level
CloneLiftImpls
TrivialTypeTraversalImpls
Span
ModChild