[lldb] Replace std::isprint/isspace with llvm's locale-independent version

Summary:
LLVM is using its own isPrint/isSpace implementation that doesn't change depending on the current locale. LLDB should do the same
to prevent that internal logic changes depending on the set locale.

Reviewers: JDevlieghere, labath, mib, totally_not_teemperor

Reviewed By: JDevlieghere

Differential Revision: https://reviews.llvm.org/D82175

1 files changed, 2 insertions, 2 deletions

diff --git a/lldb/source/Interpreter/CommandInterpreter.cpp b/lldb/source/Interpreter/CommandInterpreter.cpp
index 2eedfc2..e55b255 100644
--- a/lldb/source/Interpreter/CommandInterpreter.cpp
+++ b/lldb/source/Interpreter/CommandInterpreter.cpp
@@ -1340,10 +1340,10 @@ static size_t FindArgumentTerminator(const std::string &s) {
     if (pos == std::string::npos)
       break;
     if (pos > 0) {
-      if (isspace(s[pos - 1])) {
+      if (llvm::isSpace(s[pos - 1])) {
         // Check if the string ends "\s--" (where \s is a space character) or
         // if we have "\s--\s".
-        if ((pos + 2 >= s_len) || isspace(s[pos + 2])) {
+        if ((pos + 2 >= s_len) || llvm::isSpace(s[pos + 2])) {
           return pos;
         }
       }