The definition of {wasm::WasmCode} will not be available in no-wasm
builds, hence avoid any accesses to WasmCode for logging.

Drive-by: Inline enumeration of wasm modules for logging of existing
code, to avoid another #if.

R=petermarshall@chromium.org, jgruber@chromium.org

Bug: v8:11238
Change-Id: I3b78cf90f9ad155b5bea64e0941531aed2d4291a
Cq-Include-Trybots: luci.v8.try:v8_linux64_no_wasm_compile_rel
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2739978Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73338}