Add a new flag, -fspell-checking-limit=<number> to control how many times we'll do spell checking. Note that spell checking will change the produced AST, so we don't automatically change this value when someone sets -ferror-limit=. With this, merge test typo-correction-pt2.cpp into typo-correction.cpp.
Remove Sema::UnqualifiedTyposCorrected, a cache of corrected typos. It would only cache typo corrections that didn't provide ValidateCandidate of which there were few left, and it had a bug when we had the same identifier spelled wrong twice. See the last two tests in typo-correction.cpp for cases this fires.
llvm-svn: 224375
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 610bfff..97be3d3 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -707,6 +707,9 @@
Opts.ConstexprBacktraceLimit = getLastArgIntValue(
Args, OPT_fconstexpr_backtrace_limit,
DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
+ Opts.SpellCheckingLimit = getLastArgIntValue(
+ Args, OPT_fspell_checking_limit,
+ DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
DiagnosticOptions::DefaultTabStop, Diags);
if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {