[lld] [LLD][COFF] Adds `/includeglob` flag (PR #109721)

[Miguel A. Arroyo via llvm-commits]

================
@@ -132,6 +132,8 @@ def manifestinput : P<
 // a reserved keyword in tablegen.
 def incl : Joined<["/", "-", "/?", "-?"], "include:">,
     HelpText<"Force symbol to be added to symbol table as undefined one">;
+def incl_glob : Joined<["/", "-", "/?", "-?"], "includeglob:">,
----------------
mayanez wrote:

Yeah that's totally fair. I've moved it to the appropriate `// LLD extensions` section.

https://github.com/llvm/llvm-project/pull/109721