loplugin:staticmethods: Don't be fooled by decls starting with macros

...like SAL_DLLPRIVATE coming from UNO include files.

Change-Id: I9eb64c96b7e9e2a3742a166cedcf635d98fe65a0

compilerplugins/clang/staticmethods.cxx

@@ -87,7 +87,7 @@ bool StaticMethods::TraverseCXXMethodDecl(const CXXMethodDecl * pCXXMethodDecl)
     if (isa<CXXConstructorDecl>(pCXXMethodDecl) || isa<CXXDestructorDecl>(pCXXMethodDecl) || isa<CXXConversionDecl>(pCXXMethodDecl)) {
         return true;
     }
-    if (isInUnoIncludeFile(compiler.getSourceManager().getSpellingLoc(pCXXMethodDecl->getCanonicalDecl()->getLocStart()))) {
+    if (isInUnoIncludeFile(compiler.getSourceManager().getSpellingLoc(pCXXMethodDecl->getCanonicalDecl()->getNameInfo().getLoc()))) {
         return true;
     }
     if ( pCXXMethodDecl != pCXXMethodDecl->getCanonicalDecl() ) {