Allow int: and void: tags, but warn.

sourcepawn/compiler/sc2.cpp

@@ -2205,6 +2205,25 @@ int lex(cell *lexvalue,char **lexsym)
         tok->id = tSYMBOL;
         strcpy(tok->str, sc_tokens[i - tFIRST]);
         tok->len = strlen(tok->str);
+      } else if (*lptr == ':' &&
+                 (i == tINT ||
+                  i == tVOID))
+      {
+        // Special case 'int:' to its old behavior: an implicit view_as<> cast
+        // with Pawn's awful lowercase coercion semantics.
+        const char *token = sc_tokens[i - tFIRST];
+        switch (i) {
+          case tINT:
+            error(238, token, token);
+            break;
+          case tVOID:
+            error(239, token, token);
+            break;
+        }
+        lptr++;
+        tok->id = tLABEL;
+        strcpy(tok->str, token);
+        tok->len = strlen(tok->str);
       } else {
         tok->id = i;
         errorset(sRESET,0); /* reset error flag (clear the "panic mode")*/

sourcepawn/compiler/sc5-in.scp

@@ -454,6 +454,8 @@ static const char *warnmsg[] = {
 /*235*/  "public function lacks forward declaration (symbol \"%s\")\n",
 /*236*/  "unknown parameter in substitution (incorrect #define pattern)\n",
 /*237*/  "coercing functions to and from primitives is unsupported and will be removed in the future\n",
+/*238*/  "'%s:' is an illegal cast; use view_as<%s>(expression)\n",
+/*239*/  "'%s' is an illegal tag; use %s as a type\n",
 #else
   "\327 \275tr\242\231\227\266 %\204\305\206a\306\210\260",
   "\214\343i\215 \330\371\213t/\321cro \365",

sourcepawn/compiler/tests/ok-bad-int-cast.sp

@@ -0,0 +1,4 @@
+public main()
+{
+	new class = int:5;
+}