[lldb] Cherry pick high firing scoped timer removals #4063
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`ReadMemoryFromFileCache` can be called at a high rate, and has fast execution. Signposts for high rate & brief duration can have a negative impact on tracing; emitting a high volume signposts can lead to blocking, affecting performance, and total volume makes human review of the trace harder because of the noise. Differential Revision: https://reviews.llvm.org/D121226 (cherry picked from commit 94bda3a)
(cherry picked from commit 3ca91ad)
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Cherry pick two scoped timer updates: D121480 & D121226.
Removes the scoped timer from
Target::ReadMemoryFromFileCacheand moves the scoped timer fromModule::FindTypesintoSymbolFileDWARFDebugMap.