[clang] [clang][analyzer] Model more getline/getdelim pre and postconditions (PR #83027)

[Balazs Benics via cfe-commits]

================
@@ -0,0 +1,327 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.unix.Stream,debug.ExprInspection -verify %s
+
+#include "Inputs/system-header-simulator.h"
+#include "Inputs/system-header-simulator-for-malloc.h"
+#include "Inputs/system-header-simulator-for-valist.h"
+
+void clang_analyzer_eval(int);
+void clang_analyzer_dump_int(int);
+extern void clang_analyzer_dump_ptr(void*);
+extern void clang_analyzer_warnIfReached();
----------------
steakhal wrote:

Why do you have these `extern` while not the rest?

https://github.com/llvm/llvm-project/pull/83027