[sql] Import SQLite 3.17.0.

third_party/sqlite/src/ext/misc/regexp.c

Index: third_party/sqlite/src/ext/misc/regexp.c
diff --git a/third_party/sqlite/src/ext/misc/regexp.c b/third_party/sqlite/src/ext/misc/regexp.c
index 7244d5299815b3607fb8098172eabcfc1a5fe7a6..b4a8ab5c0423543adc4068baca271597fd70a422 100644
--- a/third_party/sqlite/src/ext/misc/regexp.c
+++ b/third_party/sqlite/src/ext/misc/regexp.c
@@ -136,7 +136,7 @@ struct ReCompiled {
 static void re_add_state(ReStateSet *pSet, int newState){
   unsigned i;
   for(i=0; i<pSet->nState; i++) if( pSet->aState[i]==newState ) return;
-  pSet->aState[pSet->nState++] = newState;
+  pSet->aState[pSet->nState++] = (ReStateNumber)newState;
 }
 
 /* Extract the next unicode character from *pzIn and return it.  Advance
@@ -358,7 +358,7 @@ static int re_insert(ReCompiled *p, int iBefore, int op, int arg){
     p->aArg[i] = p->aArg[i-1];
   }
   p->nState++;
-  p->aOp[iBefore] = op;
+  p->aOp[iBefore] = (char)op;
   p->aArg[iBefore] = arg;
   return iBefore;
 }
@@ -677,12 +677,12 @@ const char *re_compile(ReCompiled **ppRe, const char *zIn, int noCase){
     for(j=0, i=1; j<sizeof(pRe->zInit)-2 && pRe->aOp[i]==RE_OP_MATCH; i++){
       unsigned x = pRe->aArg[i];
       if( x<=127 ){
-        pRe->zInit[j++] = x;
+        pRe->zInit[j++] = (unsigned char)x;
       }else if( x<=0xfff ){
-        pRe->zInit[j++] = 0xc0 | (x>>6);
+        pRe->zInit[j++] = (unsigned char)(0xc0 | (x>>6));
         pRe->zInit[j++] = 0x80 | (x&0x3f);
       }else if( x<=0xffff ){
-        pRe->zInit[j++] = 0xd0 | (x>>12);
+        pRe->zInit[j++] = (unsigned char)(0xd0 | (x>>12));
         pRe->zInit[j++] = 0x80 | ((x>>6)&0x3f);
         pRe->zInit[j++] = 0x80 | (x&0x3f);
       }else{