Fix #14548 internalAstError for compound literal in ternary operator (danmar#8283)

Author: chrchr-github

lib/tokenlist.cpp

@@ -873,7 +873,7 @@ static void compileTerm(Token *&tok, AST_state& state)
                 state.inArrayAssignment--;
                 tok = tok1->link()->next();
             }
-        } else if (!state.inArrayAssignment && !Token::simpleMatch(prev, "=")) {
+        } else if ((!state.inArrayAssignment && !Token::simpleMatch(prev, "=")) || Token::simpleMatch(prev, "?")) {
             state.op.push(tok);
             tok = tok->link()->next();
         } else {

test/testtokenize.cpp

@@ -426,6 +426,7 @@ class TestTokenizer : public TestFixture {
         TEST_CASE(astrvaluedecl);
         TEST_CASE(astorkeyword);
         TEST_CASE(astenumdecl);
+        TEST_CASE(astcompound);
 
         TEST_CASE(startOfExecutableScope);
 
@@ -7422,6 +7423,11 @@ class TestTokenizer : public TestFixture {
         ASSERT_EQUALS("A0U=", testAst("enum myclass : unsigned char { A = 0U, };"));
     }
 
+    void astcompound() {
+        ASSERT_EQUALS("sn0=={(tmp:?=", testAst("Str s = n == 0 ? (Str) { 0 } : tmp;")); // #14548
+        ASSERT_EQUALS("s(sstrlens(0:?,{(return", testAst("return (struct Str) { (unsigned char*)s, s ? strlen(s) : 0 };"));
+    }
+
 #define isStartOfExecutableScope(offset, code) isStartOfExecutableScope_(offset, code, __FILE__, __LINE__)
     template<size_t size>
     bool isStartOfExecutableScope_(int offset, const char (&code)[size], const char* file, int line) {