In production, we will always pass a pointer to the decoded module. The
only reason for the existance of the nullptr checks is that tests
sometimes don't pass a module here. Hence we pay in production code for
a test-only feature.
This CL fixes this by always passing a module pointer from the decoder
tests. This even simplifies the code a lot by removing redundant code.
The {TestModuleBuilder} class was moved before the definitions of the
{FunctionBodyDecoderTest} class in order to be able to reuse it there.
It's unmodified otherwise.
R=ahaas@chromium.org
Bug: v8:10576
Change-Id: I7d876bfc8a27b50fe713afb8848fb4f642287cfa
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2226749
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68116}
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