[PATCH] Fully disable DWARF accelerator tables

[Robinson, Paul]

The DWARF accelerator tables are or are not supported/emitted depending on the target.  However the work to collect the info to put into the accelerator tables is always done regardless of target.  The attached patch keeps that extra work (and memory consumption) from happening.
No functional change really, and therefore no test, because the same (mangled) names appear in .debug_str because of DW_AT_linkage_name.  I found this because we have a local patch to suppress DW_AT_linkage_name but the mangled names were still showing up in .debug_str.
Thanks,
--paulr


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