Partially split up functions in optimize-instructions.wast (#3508)

FileCheck test cases are much more readable when their output assertions are
close to the corresponding input lines. #3503 introduced a script for updating
FileCheck assertions, but it only knows how to place input and output lines
together at the function boundary, so smaller functions will produce more
readable tests. optimize-instructions.wast has some very large functions that
include many test cases, so this PR breaks up some of those functions into
smaller functions to make the tests more readable. This PR only changes the
first quarter of the file, leaving further improvements as future work.

0 files changed, 0 insertions, 0 deletions