[lldb] Search main function with lldb::eFunctionNameTypeFull when getting default file and line. (llvm#113980)

This is to work around the fact that
`SymbolFileNativePDB::FindFunctions` only support
`lldb::eFunctionNameTypeFull` and `lldb::eFunctionNameTypeMethod` now.
Since `main`'s full name is the same as base name (`main`), it's okay to
search with `lldb::eFunctionNameTypeFull` when trying to get the default
file and line. With this, `lldb/test/Shell/Driver/TestSingleQuote.test`
passes on Windows with NativePDB plugin.

Author: ZequanWu

lldb/source/Core/SourceManager.cpp

@@ -430,7 +430,7 @@ SourceManager::GetDefaultFileAndLine() {
             false; // Force it to be a debug symbol.
         function_options.include_inlines = true;
         executable_ptr->FindFunctions(main_name, CompilerDeclContext(),
-                                      lldb::eFunctionNameTypeBase,
+                                      lldb::eFunctionNameTypeFull,
                                       function_options, sc_list);
         for (const SymbolContext &sc : sc_list) {
           if (sc.function) {