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# 02114e15 13-Oct-2020 Raphael Isemann <[email protected]>

[lldb] Allow limiting the number of error diagnostics when parsing an expression

While debugging another bug I found out that we currently don't set any limit
for the number of diagnostics Clang emi

[lldb] Allow limiting the number of error diagnostics when parsing an expression

While debugging another bug I found out that we currently don't set any limit
for the number of diagnostics Clang emits. If a user does something that
generates a lot of errors (like including some long header file from within the
expression function), then we currently spam the LLDB output with potentially
thousands of Clang error diagnostics.

Clang sets a default limit of 20 errors, but given that LLDB is often used
interactively for small expressions I would say a limit of 5 is enough. The
limit is implemented as a setting, so if a user cares about seeing having a
million errors printed to their terminal then they can just increase the
settings value.

Reviewed By: shafik, mib

Differential Revision: https://reviews.llvm.org/D88889

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