Fix #12947 syntaxError for valid typedef (#6611)

Author: chrchr-github

lib/tokenize.cpp

@@ -792,7 +792,8 @@ namespace {
             }
 
             if (Token::Match(tok, "%name% ::")) {
-                if (Token::Match(mRangeType.first, "const| struct|class|union|enum %name% %name%|{")) {
+                if (Token::Match(mRangeType.first, "const| struct|class|union|enum %name% %name%|{") ||
+                    Token::Match(mRangeType.first, "%name% %name% ;")) {
                     tok->originalName(tok->str());
                     tok->str(mRangeType.second->strAt(-1));
                 } else {

test/testsimplifytypedef.cpp

@@ -3686,6 +3686,19 @@ class TestSimplifyTypedef : public TestFixture {
                             "} "
                             "}";
         ASSERT_EQUALS(exp3, tok(code3));
+
+        const char code4[] = "struct A { static const int i = 1; };\n" // #12947
+                             "typedef A B;\n"
+                             "int f() {\n"
+                             "    return B::i;\n"
+                             "}\n";
+        const char exp4[] = "struct A { "
+                            "static const int i = 1 ; "
+                            "} ; "
+                            "int f ( ) { "
+                            "return A :: i ; "
+                            "}";
+        ASSERT_EQUALS(exp4, tok(code4));
     }
 
     void simplifyTypedefFunction1() {