Fix #11640 internalAstError with typedef matching member function [regression] (#4981)

Author: chrchr-github

lib/tokenize.cpp

@@ -895,7 +895,7 @@ namespace {
         bool canReplace(const Token* tok) {
             if (mNameToken == tok)
                 return false;
-            if (!Token::Match(tok->previous(), "%name%|;|{|}|(|,|<") && !Token::Match(tok, "%name% ("))
+            if (!Token::Match(tok->previous(), "%name%|;|{|}|(|,|<") && !Token::Match(tok->previous(), "!!. %name% ("))
                 return false;
             if (!Token::Match(tok, "%name% %name%|*|&|&&|;|(|)|,|::")) {
                 if (Token::Match(tok->previous(), "( %name% =") && Token::Match(tok->linkAt(-1), ") %name%|{") && !tok->tokAt(-2)->isKeyword())

test/testsimplifytypedef.cpp

@@ -57,6 +57,7 @@ class TestSimplifyTypedef : public TestFixture {
         TEST_CASE(c2);
         TEST_CASE(canreplace1);
         TEST_CASE(canreplace2);
+        TEST_CASE(canreplace3);
         TEST_CASE(cconst);
         TEST_CASE(cstruct1);
         TEST_CASE(cstruct2);
@@ -342,6 +343,17 @@ class TestSimplifyTypedef : public TestFixture {
         ASSERT_EQUALS("void f ( ) { dostuff ( entry * y < z ) ; }", simplifyTypedefC(code3));
     }
 
+    void canreplace3() {
+        const char code1[] = "typedef char* c_str;\n" // #11640
+                             "struct S {\n"
+                             "    const char* g() const {\n"
+                             "        return s.c_str();\n"
+                             "    }\n"
+                             "    std::string s;\n"
+                             "};\n";
+        ASSERT_EQUALS("struct S { const char * g ( ) const { return s . c_str ( ) ; } std :: string s ; } ;", simplifyTypedefC(code1));
+    }
+
     void cconst() {
         const char code1[] = "typedef void* HWND;\n"
                              "const HWND x;";