Repore error if the grammar has multiple %type lines for the same nonterminal.

FossilOrigin-Name: 721f33e7221c5fc907e9e293ac3242843f4fcfb7

manifest

@@ -1,8 +1,8 @@
 -----BEGIN PGP SIGNED MESSAGE-----
 Hash: SHA1
 
-C Fixed\s%\sformatting\sin\ssome\sprintf-style\sstrings.
-D 2010-02-17T20:22:11
+C Repore\serror\sif\sthe\sgrammar\shas\smultiple\s%type\slines\sfor\sthe\ssame\snonterminal.
+D 2010-02-17T20:31:32
 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
 F Makefile.in c5827ead754ab32b9585487177c93bb00b9497b3
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -765,7 +765,7 @@ F tool/diffdb.c 7524b1b5df217c20cd0431f6789851a4e0cb191b
 F tool/fragck.tcl 5265a95126abcf6ab357f7efa544787e5963f439
 F tool/genfkey.README cf68fddd4643bbe3ff8e31b8b6d8b0a1b85e20f4
 F tool/genfkey.test 4196a8928b78f51d54ef58e99e99401ab2f0a7e5
-F tool/lemon.c ec4def6e8b6335d8ac0efbaf3f4b4cdb2c2cb51d
+F tool/lemon.c 651d2564255b78e9eef5ed23156a879b5fefad33
 F tool/lempar.c 01ca97f87610d1dac6d8cd96ab109ab1130e76dc
 F tool/mkkeywordhash.c d2e6b4a5965e23afb80fbe74bb54648cd371f309
 F tool/mkopts.tcl 66ac10d240cc6e86abd37dc908d50382f84ff46e
@@ -790,24 +790,24 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
-P b3839f2aad00844c578d496c40481a39c018e4f6
-R 8568b6894a9a02964b44ffe7906bbf0d
+P f96add898f096cfc1e435c625ce74093d790b3c7
+R 7e899bd1bcc574c9843dd06c1121722a
 U icculus
-Z 88030a276c2ac0e676ff13eba4b7144a
+Z 8f255c204179bde4f6c556d2f0460a83
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manifest.uuid

@@ -1 +1 @@
-f96add898f096cfc1e435c625ce74093d790b3c7
+721f33e7221c5fc907e9e293ac3242843f4fcfb7

tool/lemon.c

@@ -2299,10 +2299,20 @@ to follow the previous rule.");
         psp->errorcnt++;
         psp->state = RESYNC_AFTER_DECL_ERROR;
       }else{
-        struct symbol *sp = Symbol_new(x);
-        psp->declargslot = &sp->datatype;
-        psp->insertLineMacro = 0;
-        psp->state = WAITING_FOR_DECL_ARG;
+        struct symbol *sp = Symbol_find(x);
+        if((sp) && (sp->datatype)){
+          ErrorMsg(psp->filename,psp->tokenlineno,
+            "Symbol %%type \"%s\" already defined", x);
+          psp->errorcnt++;
+          psp->state = RESYNC_AFTER_DECL_ERROR;
+        }else{
+          if (!sp){
+            sp = Symbol_new(x);
+          }
+          psp->declargslot = &sp->datatype;
+          psp->insertLineMacro = 0;
+          psp->state = WAITING_FOR_DECL_ARG;
+        }
       }
       break;
     case WAITING_FOR_PRECEDENCE_SYMBOL: