Fixed false positive stlIfStrFind for function call inside condition.

Removed unnecessary suppressions in .travis_suppressions

.travis_suppressions

@@ -7,9 +7,6 @@ uselessAssignmentPtrArg:build/tokenize.cpp
 *:test/test.cxx
 *:test/cfg*
 
-*:democlient*
 *:externals*
-*:htdocs*
 *:htmlreport*
 *:samples*
-*:win_installer*

lib/checkstl.cpp

@@ -655,11 +655,14 @@ void CheckStl::if_find()
         if ((i->type != Scope::eIf && i->type != Scope::eWhile) || !i->classDef)
             continue;
 
-        for (const Token *tok = i->classDef; tok->str() != "{"; tok = tok->next()) {
+        for (const Token *tok = i->classDef->next(); tok->str() != "{"; tok = tok->next()) {
             const Token* funcTok = nullptr;
             const Library::Container* container = nullptr;
 
-            if (tok->variable() && Token::Match(tok, "%var% . %name% (")) {
+            if (Token::Match(tok, "%name% ("))
+                tok = tok->linkAt(1);
+
+            else if (tok->variable() && Token::Match(tok, "%var% . %name% (")) {
                 container = _settings->library.detectContainer(tok->variable()->typeStartToken());
                 funcTok = tok->tokAt(2);
             }

test/teststl.cpp

@@ -1721,6 +1721,11 @@ private:
               "    if (a.find(\"<\") < b.find(\">\")) {}\n"
               "}");
         ASSERT_EQUALS("", errout.str());
+
+        check("void f(const std::string &s) {\n"
+              "    if (foo(s.find(\"abc\"))) { }\n"
+              "}");
+        ASSERT_EQUALS("", errout.str());
     }