[lldb] Fix a regression in SBValue::GetObjectDescription() (#117242) #11196
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The old behavior was to return a null string in the error case,when refactoring the error handling I thought it would be a good idea to print the error in the description, but that breaks clients that try to print a description first and then do something else in the error case. The API is not great but it's clear that in-band errors are also not a good idea. rdar://133956263 (cherry picked from commit 7553fb1) Conflicts: lldb/test/API/commands/expression/diagnostics/TestExprDiagnostics.py (cherry picked from commit 091aa23)
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The old behavior was to return a null string in the error case,when refactoring the error handling I thought it would be a good idea to print the error in the description, but that breaks clients that try to print a description first and then do something else in the error case. The API is not great but it's clear that in-band errors are also not a good idea.
rdar://133956263
(cherry picked from commit 7553fb1)
Conflicts:
lldb/test/API/commands/expression/diagnostics/TestExprDiagnostics.py
(cherry picked from commit 091aa23)