Ignore inlining costs for precompilation with --compile=all (JuliaLang#53798)

This helps to minimize the amount of missed precompiles
that occur by eliding the inlining cost check when julia is
run under `--compile=all`. This will lead to
slightly larger sysimage sizes. However, in practice it leads
to more extensive and successful precompilation, which can
minimize the number of JIT events in
call sites with dynamic dispatch.

This is an alternative to JuliaLang#53547, where removing the inlining
cost check was made universal. However, that lead to ~15% larger
sysimage sizes by default. This implements Jeff's  suggestion that
this mode be enabled under `--compile=all`.

Author: sjkelly

src/precompile_utils.c

@@ -186,8 +186,7 @@ static int precompile_enq_specialization_(jl_method_instance_t *mi, void *closur
             jl_value_t *inferred = jl_atomic_load_relaxed(&codeinst->inferred);
             if (inferred &&
                 inferred != jl_nothing &&
-                jl_ir_flag_inferred(inferred) &&
-                (jl_ir_inlining_cost(inferred) == UINT16_MAX)) {
+                (jl_options.compile_enabled != JL_OPTIONS_COMPILE_ALL || jl_ir_inlining_cost(inferred) == UINT16_MAX)) {
                 do_compile = 1;
             }
             else if (jl_atomic_load_relaxed(&codeinst->invoke) != NULL || jl_atomic_load_relaxed(&codeinst->precompile)) {