Fix #14977 internalError for valid typedef (operator=) (#8798)

Co-authored-by: chrchr-github <noreply@github.com>

Author: chrchr-github

lib/tokenize.cpp

@@ -572,12 +572,12 @@ namespace {
                         ++nBraces;
                     else if (tok->str() == "}")
                         --nBraces;
+                    if (nBraces > 0)
+                        continue;
                     if (tok == mNameToken)
                         continue;
                     if (tok->str() != mNameToken->str())
                         continue;
-                    if (nBraces > 0 && Token::Match(tok->next(), "[;(]"))
-                        continue;
                     if (Token::Match(tok->previous(), "struct|class|enum|union"))
                         continue;
                     throw InternalError(tok, "recursive typedef encountered");

test/testsimplifytypedef.cpp

@@ -3887,6 +3887,9 @@ class TestSimplifyTypedef : public TestFixture {
 
         const char code3[] = "typedef struct S { S() {} } S;"; // #14971
         ASSERT_EQUALS("struct S { S ( ) { } } ;", tok(code3));
+
+        const char code4[] = "typedef struct S { S& operator=(const S&) = delete; } S;"; // #14977
+        ASSERT_EQUALS("struct S { S & operator= ( const S & ) = delete ; } ;", tok(code4));
     }
 
     void simplifyTypedefFunction1() {