[tools] Fix LLVM_USE_SANITIZE_COVERAGE build (#87722)

llvm/tools/llvm-dis-fuzzer/CMakeLists.txt

@@ -1,5 +1,7 @@
 set(LLVM_LINK_COMPONENTS
   BitReader
+  Core
+  Support
 )
 add_llvm_fuzzer(llvm-dis-fuzzer
   llvm-dis-fuzzer.cpp

llvm/tools/vfabi-demangle-fuzzer/vfabi-demangler-fuzzer.cpp

@@ -11,7 +11,9 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/AsmParser/Parser.h"
+#include "llvm/IR/Module.h"
 #include "llvm/IR/VFABIDemangler.h"
+#include "llvm/Support/SourceMgr.h"
 
 using namespace llvm;