In the debugger, wasm scripts currently do not contain meaningful column
informations. Fix that by keeping track of the offset and size of the
wasm code section inthe module and reporting that to the debugger.

Bug: chromium:1042636
Change-Id: Ie2b5d3a50952a467d256f815c16e459cb0ae600e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2011083
Commit-Queue: Philip Pfaffe <pfaffe@chromium.org>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65913}