[cfe-dev] External Symbolizer with ubsan

[zapadinsky]

> ? Each location should only be diagnosed once, even though we don't list a
> column-accurate location in the diagnostic.

I have clang from trunk as it was on 20-26 January. And Same location
reported many times.
....
/.../lib....so:0x14c5de0: runtime error: load of value 4294967295, which is
not a valid value for type '...'
/.../lib....so:0x14c4b86: runtime error: load of value 4294967295, which is
not a valid value for type '...'
/.../lib....so:0x14c5de0: runtime error: load of value 4294967295, which is
not a valid value for type '...'
/.../lib....so:0x14c4b86: runtime error: load of value 4294967295, which is
not a valid value for type '...'
....

The type is the same and shared library is the same and address and value



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