Unbreak build with --disable-analyzer

I broke the build with --disable-analyzer with
g:66dde7bc64b75d4a338266333c9c490b12d49825, due to:

../../src/gcc/analyzer/analyzer-pass.cc: In member function ‘virtual unsigned int {anonymous}::pass_analyzer::execute(function*)’:
../../src/gcc/analyzer/analyzer-pass.cc:86:3: error: ‘sorry_no_analyzer’ was not declared in this scope
   86 |   sorry_no_analyzer ();
      |   ^~~~~~~~~~~~~~~~~

Fixed by including the relevant header file.
Sorry about the breakage.

gcc/analyzer/ChangeLog:
	* analyzer-pass.cc: Include "analyzer/analyzer.h" for the
	declaration of sorry_no_analyzer; include "tree.h" and
	"function.h" as these are needed by it.

gcc/analyzer/analyzer-pass.cc

@@ -25,6 +25,9 @@ along with GCC; see the file COPYING3.  If not see
 #include "tree-pass.h"
 #include "diagnostic.h"
 #include "options.h"
+#include "tree.h"
+#include "function.h"
+#include "analyzer/analyzer.h"
 #include "analyzer/engine.h"
 
 namespace {